Plant sciences

  • Article | | open

    Meiotic crossover (CO) landscape differs inter- and intra-species, as well as between sexes. Here, the authors show that male meiosis produces more COs than female in maize and detect CO maturation inefficiency in some genetic backgrounds, which may help to improve breeding efficiency.

    • Cheng Luo
    • , Xiang Li
    • , Qinghua Zhang
    •  & Jianbing Yan
  • Article | | open

    CC and TIR-domain type NLR receptors trigger plant immunity in response to pathogen effectors. Here, Bhandari et al. show that the EP-domain surface of EDS1 heterodimers signals downstream of both receptor types and ensures a rapid transcriptional response in TIR-NLR immunity to bacteria.

    • Deepak D. Bhandari
    • , Dmitry Lapin
    • , Barbara Kracher
    • , Patrick von Born
    • , Jaqueline Bautor
    • , Karsten Niefind
    •  & Jane E. Parker
  • Article | | open

    The diurnal cycle exerts influences on various aspects of plant biology. Here, the authors generate and compare diurnal transcriptomics data from nine members of Archaeplastida representing major clades.

    • Camilla Ferrari
    • , Sebastian Proost
    • , Marcin Janowski
    • , Jörg Becker
    • , Zoran Nikoloski
    • , Debashish Bhattacharya
    • , Dana Price
    • , Takayuki Tohge
    • , Arren Bar-Even
    • , Alisdair Fernie
    • , Mark Stitt
    •  & Marek Mutwil
  • Article | | open

    Few approaches for targeted manipulation of the epigenome are available in plants. Here, the authors adapt the dCas9-SunTag system to engineer targeted gene activation and site-specific manipulation of DNA methylation in Arabidopsis.

    • Ashot Papikian
    • , Wanlu Liu
    • , Javier Gallego-Bartolomé
    •  & Steven E. Jacobsen
  • Article | | open

    Auxin transport and microtubule orientation respond to mechanical stimulation at the shoot apical meristem. Here Li et al. show that mechanical stimulation causes cytosolic calcium concentration transients, and preventing such changes impairs reorientation of the PIN1 auxin efflux carrier, but not of microtubules.

    • Ting Li
    • , An Yan
    • , Neha Bhatia
    • , Alphan Altinok
    • , Eldad Afik
    • , Pauline Durand-Smet
    • , Paul T. Tarr
    • , Julian I. Schroeder
    • , Marcus G. Heisler
    •  & Elliot M. Meyerowitz
  • Article | | open

    24-nt phased siRNA (phasiRNA) regulate reproduction in grasses, yet are absent from Arabidopsis, and were thought to be monocot-specific. Here, Xia et al. show that 24-nt phasiRNAs are in fact broadly distributed among eudicots and are consistently enriched during meiosis, despite possibly arising from distinct biogenesis pathways.

    • Rui Xia
    • , Chengjie Chen
    • , Suresh Pokhrel
    • , Wuqiang Ma
    • , Kun Huang
    • , Parth Patel
    • , Fuxi Wang
    • , Jing Xu
    • , Zhongchi Liu
    • , Jianguo Li
    •  & Blake C. Meyers
  • Article | | open

    Despite the importance of proximal-distal patterning of leaves in cereal productivity, the underlying molecular mechanisms are poorly understood. Here, the authors find that the ratio of sheath to blade in rice leaf shifts depends on the expression levels of BLADE-ON-PETIOLE genes.

    • Taiyo Toriba
    • , Hiroki Tokunaga
    • , Toshihide Shiga
    • , Fanyu Nie
    • , Satoshi Naramoto
    • , Eriko Honda
    • , Keisuke Tanaka
    • , Teruaki Taji
    • , Jun-Ichi Itoh
    •  & Junko Kyozuka
  • Perspective | | open

    Biological circadian rhythms maintain a period close to 24 h in coordination with the Earth’s fixed rotational period. Here Webb et al. discuss how external cues continuously adjust phase and period, viewing the oscillator as a dynamically-adjusted plastic system rather than tightly-coupled cogs in a mechanical clock.

    • Alex A. R. Webb
    • , Motohide Seki
    • , Akiko Satake
    •  & Camila Caldana
  • Article | | open

    Cell wall pits allow movement of water between xylem vessels and are formed via Rho-GTPase mediated signaling that leads to local microtubule disassembly. Here, Sugiyama et al. show that an additional Rho-GTPase pathway controls cell wall deposition and actin dynamics to form pit boundaries.

    • Yuki Sugiyama
    • , Yoshinobu Nagashima
    • , Mayumi Wakazaki
    • , Mayuko Sato
    • , Kiminori Toyooka
    • , Hiroo Fukuda
    •  & Yoshihisa Oda
  • Article | | open

    Broomcorn millet is one of the earliest domesticated plants and has the highest water use efficiency among cereals. Here, the authors report its genome assembly and annotation, which provides a valuable resource for breeders and paves the way for studying plant drought tolerance and C4 photosynthesis.

    • Changsong Zou
    • , Leiting Li
    • , Daisuke Miki
    • , Delin Li
    • , Qiming Tang
    • , Lihong Xiao
    • , Santosh Rajput
    • , Ping Deng
    • , Li Peng
    • , Wei Jia
    • , Ru Huang
    • , Meiling Zhang
    • , Yidan Sun
    • , Jiamin Hu
    • , Xing Fu
    • , Patrick S. Schnable
    • , Yuxiao Chang
    • , Feng Li
    • , Hui Zhang
    • , Baili Feng
    • , Xinguang Zhu
    • , Renyi Liu
    • , James C. Schnable
    • , Jian-Kang Zhu
    •  & Heng Zhang
  • Article | | open

    Broomcorn millet is one of the oldest crops cultivated by human that has strong abiotic stress tolerance. To facilitate genome assisted breeding of this and related species, the authors report its genome assembly and conduct comparative genome structure and evolution analyses with foxtail millet.

    • Junpeng Shi
    • , Xuxu Ma
    • , Jihong Zhang
    • , Yingsi Zhou
    • , Minxuan Liu
    • , Liangliang Huang
    • , Silong Sun
    • , Xiangbo Zhang
    • , Xiang Gao
    • , Wei Zhan
    • , Pinghua Li
    • , Lun Wang
    • , Ping Lu
    • , Haiming Zhao
    • , Weibin Song
    •  & Jinsheng Lai
  • Article | | open

    Plants are dependent on controlled sugar uptake via Monosaccharide Transporters, such as STP10, for correct organ development, sugar accumulation in fruits and microbial defense. Here authors present the crystal structure of STP10 bound to glucose which sheds light on the fundamental principles of sugar transport in the plant-unique MST superfamily.

    • Peter Aasted Paulsen
    • , Tânia F. Custódio
    •  & Bjørn Panyella Pedersen
  • Article | | open

    It has been thought that land plants suffered a mass extinction along with animals at the end of the Permian. Here, Nowak et al. show that the apparent plant mass extinction is a result of biases in the fossil record and their reanalysis suggests a lower magnitude and more selective plant extinction.

    • Hendrik Nowak
    • , Elke Schneebeli-Hermann
    •  & Evelyn Kustatscher
  • Article | | open

    The interactions of lignin with polysaccharides in plant secondary cell walls are not well understood. Here the authors employ solid-state NMR measurements to analyse intact stems of maize, Arabidopsis, switchgrass and rice and observe that lignin self-aggregates and forms highly hydrophobic microdomains that make extensive surface contacts to xylan.

    • Xue Kang
    • , Alex Kirui
    • , Malitha C. Dickwella Widanage
    • , Frederic Mentink-Vigier
    • , Daniel J. Cosgrove
    •  & Tuo Wang
  • Article | | open

    Cleavage of strigolactone by the D14 receptor was assumed to produce an active intermediate that promotes signaling. Here the authors show that D14 activity is not dependent on cleavage activity and propose a new model whereby ligand hydrolysis serves to deactivate strigolactone signaling.

    • Yoshiya Seto
    • , Rei Yasui
    • , Hiromu Kameoka
    • , Muluneh Tamiru
    • , Mengmeng Cao
    • , Ryohei Terauchi
    • , Akane Sakurada
    • , Rena Hirano
    • , Takaya Kisugi
    • , Atsushi Hanada
    • , Mikihisa Umehara
    • , Eunjoo Seo
    • , Kohki Akiyama
    • , Jason Burke
    • , Noriko Takeda-Kamiya
    • , Weiqiang Li
    • , Yoshinori Hirano
    • , Toshio Hakoshima
    • , Kiyoshi Mashiguchi
    • , Joseph P. Noel
    • , Junko Kyozuka
    •  & Shinjiro Yamaguchi
  • Article | | open

    The shoot apical meristem (SAM) maintains stem cells and generates new leaves and flowers from its periphery. Here via spatially resolved translatome profiling, Tian et al. define distinct molecular signatures of different SAM and leaf domains and identify regulators of axillary meristem initiation.

    • Caihuan Tian
    • , Ying Wang
    • , Haopeng Yu
    • , Jun He
    • , Jin Wang
    • , Bihai Shi
    • , Qingwei Du
    • , Nicholas J. Provart
    • , Elliot M. Meyerowitz
    •  & Yuling Jiao
  • Article | | open

    The phyB photoreceptor senses nighttime temperature in Arabidopsis plants cultivated in short-day photoperiods. Here the authors show that phyB can also promote thermomorphogenesis during constant light or the daytime, and acts via a HEMERA-dependent mechanism that promotes the activity and accumulation of PIF4.

    • Yongjian Qiu
    • , Meina Li
    • , Ruth Jean-Ae Kim
    • , Carisha M. Moore
    •  & Meng Chen
  • Article | | open

    Examples of overdominance are usually explained by deleterious effects in homozygotes. Here, Kellenberger et al. describe a case of overdominance in the floral color of the Alpine orchid Gymnadenia rhellicani apparently maintained by pollinator preferences without deleterious effects in homozygotes.

    • Roman T. Kellenberger
    • , Kelsey J. R. P. Byers
    • , Rita M. De Brito Francisco
    • , Yannick M. Staedler
    • , Amy M. LaFountain
    • , Jürg Schönenberger
    • , Florian P. Schiestl
    •  & Philipp M. Schlüter
  • Article | | open

    Transposable elements (TE) are the dominant constituent of plant genomes. Here the authors develop a tool to analyze TE insertion sites in 3000 rice genomes and provide evidence for recent TE activity during cultivation and that external, rather than genetic, stimuli trigger most activations.

    • Marie-Christine Carpentier
    • , Ernandes Manfroi
    • , Fu-Jin Wei
    • , Hshin-Ping Wu
    • , Eric Lasserre
    • , Christel Llauro
    • , Emilie Debladis
    • , Roland Akakpo
    • , Yue-Ie Hsing
    •  & Olivier Panaud
  • Article | | open

    Phenylalanine is mostly synthesized in plant plastids, but cytosolic transamination of phenylpyruvate also contributes. Here the authors show that a cytosolic chorismate mutase and a prephenate dehydratase encoded by an isoform of the plastidial ADT3 enzyme, produce phenylpyruvate in the cytosol.

    • Yichun Qian
    • , Joseph H. Lynch
    • , Longyun Guo
    • , David Rhodes
    • , John A. Morgan
    •  & Natalia Dudareva
  • Article | | open

    Plants and fungi interact widely and in diverse ways, from mutualism to parasitism and decomposition. Here, Lutzoni et al. analyse the timing of plant and fungal evolutionary radiations and identify four major periods in which plant-fungal interactions likely drove lineage diversification.

    • François Lutzoni
    • , Michael D. Nowak
    • , Michael E. Alfaro
    • , Valérie Reeb
    • , Jolanta Miadlikowska
    • , Michael Krug
    • , A. Elizabeth Arnold
    • , Louise A. Lewis
    • , David L. Swofford
    • , David Hibbett
    • , Khidir Hilu
    • , Timothy Y. James
    • , Dietmar Quandt
    •  & Susana Magallón
  • Article | | open

    VRN2 is a Polycomb Repressive Complex 2 subunit, best known as a regulator of vernalization that accumulates during prolonged cold. Here Gibbs et al. show that VRN2 is degraded via the N-end rule pathway, which  prevents ectopic accumulation of VRN2 in the absence of appropriate environmental stimuli.

    • Daniel J. Gibbs
    • , Hannah M. Tedds
    • , Anne-Marie Labandera
    • , Mark Bailey
    • , Mark D. White
    • , Sjon Hartman
    • , Colleen Sprigg
    • , Sophie L. Mogg
    • , Rory Osborne
    • , Charlene Dambire
    • , Tinne Boeckx
    • , Zachary Paling
    • , Laurentius A. C. J. Voesenek
    • , Emily Flashman
    •  & Michael J. Holdsworth
  • Article | | open

    The origin of Tibetan barley (qingke) has been a controversial issue for many years. Here, the authors conduct population genomics study to support that qingke is derived from eastern domesticated barley instead of Tibetan wild barley and suggest southern Tibetan Plateau as its introduction route.

    • Xingquan Zeng
    • , Yu Guo
    • , Qijun Xu
    • , Martin Mascher
    • , Ganggang Guo
    • , Shuaicheng Li
    • , Likai Mao
    • , Qingfeng Liu
    • , Zhanfeng Xia
    • , Juhong Zhou
    • , Hongjun Yuan
    • , Shuaishuai Tai
    • , Yulin Wang
    • , Zexiu Wei
    • , Li Song
    • , Sang Zha
    • , Shiming Li
    • , Yawei Tang
    • , Lijun Bai
    • , Zhenhua Zhuang
    • , Weiming He
    • , Shancen Zhao
    • , Xiaodong Fang
    • , Qiang Gao
    • , Ye Yin
    • , Jian Wang
    • , Huanming Yang
    • , Jing Zhang
    • , Robert J. Henry
    • , Nils Stein
    •  & Nyima Tashi
  • Article | | open

    Peach is an economically important fruit crop. Here, the authors carry out a large-scale population genomics analysis of peach, describing its demographic history as well as genes associated with domestication and edibility traits.

    • Yang Yu
    • , Jun Fu
    • , Yaoguang Xu
    • , Jiewei Zhang
    • , Fei Ren
    • , Hongwei Zhao
    • , Shilin Tian
    • , Wei Guo
    • , Xiaolong Tu
    • , Jing Zhao
    • , Dawei Jiang
    • , Jianbo Zhao
    • , Weiying Wu
    • , Gaochao Wang
    • , Rongcai Ma
    • , Quan Jiang
    • , Jianhua Wei
    •  & Hua Xie
  • Article | | open

    The plant trans-Golgi network comprises functionally distinct subcompartments. Here Renna et al. show that the TGNap1 protein acts in microtubule-dependent biogenesis, tracking and function of a TGN subset, highlighting diversification within the plant TGN.

    • Luciana Renna
    • , Giovanni Stefano
    • , Erin Slabaugh
    • , Clarissa Wormsbaecher
    • , Alan Sulpizio
    • , Krzysztof Zienkiewicz
    •  & Federica Brandizzi
  • Article | | open

    Viruses are potential vectors for horizontal gene transfer. Here, studying viral infection of sugar beet plants, the authors report the generation of virus-host circular DNA hybrids and provide a picture of the initial steps in virus-mediated horizontal transfer of chromosomal DNA between plant species.

    • Marco Catoni
    • , Emanuela Noris
    • , Anna Maria Vaira
    • , Thomas Jonesman
    • , Slavica Matić
    • , Reihaneh Soleimani
    • , Seyed Ali Akbar Behjatnia
    • , Nestor Vinals
    • , Jerzy Paszkowski
    •  & Gian Paolo Accotto
  • Article | | open

    In Arabidopsis, the AG and CRC transcription factors terminate floral stem cells and allow the emergence of female floral organs. Here the authors show that AG and CRC form a feed-forward loop that controls local auxin biosynthesis via induction of YUCCA4 to ensure successful gynoecium formation.

    • Nobutoshi Yamaguchi
    • , Jiangbo Huang
    • , Yoshitaka Tatsumi
    • , Masato Abe
    • , Shigeo S. Sugano
    • , Mikiko Kojima
    • , Yumiko Takebayashi
    • , Takatoshi Kiba
    • , Ryusuke Yokoyama
    • , Kazuhiko Nishitani
    • , Hitoshi Sakakibara
    •  & Toshiro Ito
  • Article | | open

    Tropinone is an intermediate in the biosynthesis of tropane alkaloids. Here, the authors discovered the enzymes AbPYKS and AbCYP82M3, a non-canonical polyketide synthase and a cytochrome P450, that work sequentially to form tropinone from N-methyl-Δ1-pyrrolinium cation.

    • Matthew A. Bedewitz
    • , A. Daniel Jones
    • , John C. D’Auria
    •  & Cornelius S. Barry
  • Article | | open

    The evolutionary mechanisms leading to the development of sperm are poorly understood. Here, the authors infer that neofunctionalisation and expression changes of the orthologue of DUO1 in algal ancestors of land plants were key events for sperm differentiation and sexual reproduction in this lineage.

    • Asuka Higo
    • , Tomokazu Kawashima
    • , Michael Borg
    • , Mingmin Zhao
    • , Irene López-Vidriero
    • , Hidetoshi Sakayama
    • , Sean A. Montgomery
    • , Hiroyuki Sekimoto
    • , Dieter Hackenberg
    • , Masaki Shimamura
    • , Tomoaki Nishiyama
    • , Keiko Sakakibara
    • , Yuki Tomita
    • , Taisuke Togawa
    • , Kan Kunimoto
    • , Akihisa Osakabe
    • , Yutaka Suzuki
    • , Katsuyuki T. Yamato
    • , Kimitsune Ishizaki
    • , Ryuichi Nishihama
    • , Takayuki Kohchi
    • , José M. Franco-Zorrilla
    • , David Twell
    • , Frédéric Berger
    •  & Takashi Araki
  • Article | | open

    Boron is essential for plant survival but high levels can impair growth and cause DNA damage. Here the authors show that Arabidopsis can ameliorate Boron toxicity via proteasomal degradation of BRAHMA to minimize open chromatin and reduce the likelihood of DNA double strand breaks.

    • Takuya Sakamoto
    • , Yayoi Tsujimoto-Inui
    • , Naoyuki Sotta
    • , Takeshi Hirakawa
    • , Tomoko M. Matsunaga
    • , Yoichiro Fukao
    • , Sachihiro Matsunaga
    •  & Toru Fujiwara
  • Article | | open

    Northern tree populations may not benefit under climate change, with implications for assisted migration and range expansion. Here, Isaac-Renton et al. show that leading-edge lodgepole pine populations have fewer characteristics of drought-tolerance, so may not adapt to tolerate drier conditions.

    • Miriam Isaac-Renton
    • , David Montwé
    • , Andreas Hamann
    • , Heinrich Spiecker
    • , Paolo Cherubini
    •  & Kerstin Treydte
  • Article | | open

    Drought is a major factor limiting crop productivity. Here, via eQTL analysis and comparative genomics, the authors show compensatory evolution between trans-regulatory loci and transcription factor binding sites that shape the drought response networks in the model C4 grass Panicum hallii.

    • John T. Lovell
    • , Jerry Jenkins
    • , David B. Lowry
    • , Sujan Mamidi
    • , Avinash Sreedasyam
    • , Xiaoyu Weng
    • , Kerrie Barry
    • , Jason Bonnette
    • , Brandon Campitelli
    • , Chris Daum
    • , Sean P. Gordon
    • , Billie A. Gould
    • , Albina Khasanova
    • , Anna Lipzen
    • , Alice MacQueen
    • , Juan Diego Palacio-Mejía
    • , Christopher Plott
    • , Eugene V. Shakirov
    • , Shengqiang Shu
    • , Yuko Yoshinaga
    • , Matt Zane
    • , Dave Kudrna
    • , Jason D. Talag
    • , Daniel Rokhsar
    • , Jane Grimwood
    • , Jeremy Schmutz
    •  & Thomas E. Juenger
  • Article | | open

    The plant FLS2 receptor initiates bacterial immunity in response to flagellin. Here the authors show that SUMO conjugates to FLS2 in response to flagellin promoting downstream signalling events while Desi3A, an FLS2 deSUMOylating enzyme, is degraded to enhance immune responses.

    • Beatriz Orosa
    • , Gary Yates
    • , Vivek Verma
    • , Anjil K. Srivastava
    • , Moumita Srivastava
    • , Alberto Campanaro
    • , Daniel De Vega
    • , Alanna Fernandes
    • , Cunjin Zhang
    • , Jack Lee
    • , Malcolm J. Bennett
    •  & Ari Sadanandom
  • Article | | open

    Plant pathogens have evolved to evade detection by their hosts. Here, Asai et al. show that virulent isolates of the oomycete Hyaloperonospora arabidopsidis can break resistance conferred by the Arabidopsis RPP4 resistance gene via variation in effector expression or subcellular localization.

    • Shuta Asai
    • , Oliver J. Furzer
    • , Volkan Cevik
    • , Dae Sung Kim
    • , Naveed Ishaque
    • , Sandra Goritschnig
    • , Brian J. Staskawicz
    • , Ken Shirasu
    •  & Jonathan D. G. Jones
  • Article | | open

    In plants, hyperosmolality stimuli triggers opening of the osmosensitive channels, leading to a rapid downstream signaling cascade. Here, the authors solve the cryo-EM structure of an osmosensitive channel from Arabidopsis OSCA1.2 in its inactivated state.

    • Xin Liu
    • , Jiawei Wang
    •  & Linfeng Sun
  • Article | | open

    The microalgal pyrenoid has been reported to behave as a phase-separated liquid compartment. Here the authors demonstrate that the CO2-fixing enzyme Rubisco and the linker protein EPYC1 are necessary and sufficient to bring about a liquid-liquid phase separation that recapitulates the pyrenoid’s liquid-like behavior.

    • Tobias Wunder
    • , Steven Le Hung Cheng
    • , Soak-Kuan Lai
    • , Hoi-Yeung Li
    •  & Oliver Mueller-Cajar
  • Article | | open

    A small RNA-based signaling cascade prevents the induction of plant resistance genes (R-genes) in the absence of pathogen challenge. Here Cai et al. show that nuclear accumulation of the R protein SNC1 can activate immunity by suppressing small RNA production and releasing R-gene repression.

    • Qiang Cai
    • , Chao Liang
    • , Suikang Wang
    • , Yingnan Hou
    • , Lei Gao
    • , Li Liu
    • , Wenrong He
    • , Wenbo Ma
    • , Beixin Mo
    •  & Xuemei Chen
  • Article | | open

    Assembly of large, repeat-rich eukaryotic genomes remains challenging. Here, the authors use BioNano Genomics DLS optical mapping and single-molecule nanopore sequencing to generate a chromosome-scale assembly of a new Sorghum bicolor accession and identify variation compared to the publicly available S. bicolor genome.

    • Stéphane Deschamps
    • , Yun Zhang
    • , Victor Llaca
    • , Liang Ye
    • , Abhijit Sanyal
    • , Matthew King
    • , Gregory May
    •  & Haining Lin
  • Article | | open

    Remarkable organ shape morphological diversity exists in fruits, vegetables and seeds. Here, the authors establish a link between OVATE Family Proteins and TONNEAU1 Recruiting Motif family proteins in the development pathway that governs fruit shape of tomato, melon, and cucumber as well as potato tuber shape.

    • Shan Wu
    • , Biyao Zhang
    • , Neda Keyhaninejad
    • , Gustavo R. Rodríguez
    • , Hyun Jung Kim
    • , Manohar Chakrabarti
    • , Eudald Illa-Berenguer
    • , Nathan K. Taitano
    • , M. J Gonzalo
    • , Aurora Díaz
    • , Yupeng Pan
    • , Courtney P. Leisner
    • , Dennis Halterman
    • , C. Robin Buell
    • , Yiqun Weng
    • , Shelley H. Jansky
    • , Herman van Eck
    • , Johan Willemsen
    • , Antonio J. Monforte
    • , Tea Meulia
    •  & Esther van der Knaap
  • Article | | open

    Drought resistant plants typically have reduced growth. Here the authors show that overexpression of the BRL3 brassinosteroid receptor confers drought tolerance and accumulation of osmoprotectant metabolites without penalizing growth, demonstrating that drought response and growth can be uncoupled.

    • Norma Fàbregas
    • , Fidel Lozano-Elena
    • , David Blasco-Escámez
    • , Takayuki Tohge
    • , Cristina Martínez-Andújar
    • , Alfonso Albacete
    • , Sonia Osorio
    • , Mariana Bustamante
    • , José Luis Riechmann
    • , Takahito Nomura
    • , Takao Yokota
    • , Ana Conesa
    • , Francisco Pérez Alfocea
    • , Alisdair R. Fernie
    •  & Ana I. Caño-Delgado
  • Article | | open

    The peri-arbuscular membrane (PAM) mediates mutually-beneficial nutrient exchange between plants and arbuscular mycorrhizal (AM) fungi. Here the authors identify ARK1, a PAM-specific receptor-like kinase from rice that sustains AM symbiosis post-arbuscule development.

    • Ronelle Roth
    • , Marco Chiapello
    • , Héctor Montero
    • , Peter Gehrig
    • , Jonas Grossmann
    • , Kevin O’Holleran
    • , Denise Hartken
    • , Fergus Walters
    • , Shu-Yi Yang
    • , Stefan Hillmer
    • , Karin Schumacher
    • , Sarah Bowden
    • , Melanie Craze
    • , Emma J. Wallington
    • , Akio Miyao
    • , Ruairidh Sawers
    • , Enrico Martinoia
    •  & Uta Paszkowski
  • Article | | open

    Sweetpotato is an important food security crop providing rich source of macro- and micronutrients including carbohydrates and vitamins. Here, the authors assemble of the two diploid relatives of cultivated sweetpotato and identify genes and alleles associated with carotenoid biosynthesis from breeding lines.

    • Shan Wu
    • , Kin H. Lau
    • , Qinghe Cao
    • , John P. Hamilton
    • , Honghe Sun
    • , Chenxi Zhou
    • , Lauren Eserman
    • , Dorcus C. Gemenet
    • , Bode A. Olukolu
    • , Haiyan Wang
    • , Emily Crisovan
    • , Grant T. Godden
    • , Chen Jiao
    • , Xin Wang
    • , Mercy Kitavi
    • , Norma Manrique-Carpintero
    • , Brieanne Vaillancourt
    • , Krystle Wiegert-Rininger
    • , Xinsun Yang
    • , Kan Bao
    • , Jennifer Schaff
    • , Jan Kreuze
    • , Wolfgang Gruneberg
    • , Awais Khan
    • , Marc Ghislain
    • , Daifu Ma
    • , Jiming Jiang
    • , Robert O. M. Mwanga
    • , Jim Leebens-Mack
    • , Lachlan J. M. Coin
    • , G. Craig Yencho
    • , C. Robin Buell
    •  & Zhangjun Fei
  • Article | | open

    The function of most lncRNA is unknown. Here, the authors show that transcriptional read-through at the Arabidopsis SVALKA locus produces a cryptic lncRNA that overlaps with the neighboring cold-responsive CBF1 gene and limits CBF1 expression via an RNA polymerase II collision-based mechanism.

    • Peter Kindgren
    • , Ryan Ard
    • , Maxim Ivanov
    •  & Sebastian Marquardt
  • Article | | open

    DNA methylation and H3K9 dimethylation are two linked epigenetic marks of silenced chromatin in plants that depend on the activity of CMT3/2 and SUVH4/5/6. Here the authors identify AGDP1 as an H3K9me2-binding protein required for heterochromatic non-CG DNA methylation, H3K9 dimethylation, and transcriptional silencing.

    • Cuijun Zhang
    • , Xuan Du
    • , Kai Tang
    • , Zhenlin Yang
    • , Li Pan
    • , Peipei Zhu
    • , Jinyan Luo
    • , Yuwei Jiang
    • , Hui Zhang
    • , Huafang Wan
    • , Xingang Wang
    • , Fengkai Wu
    • , W. Andy Tao
    • , Xin-Jian He
    • , Heng Zhang
    • , Ray A. Bressan
    • , Jiamu Du
    •  & Jian-Kang Zhu
  • Article | | open

    Homeotic transcription factors and miRNAs promote floral organ specification. Here Chen et al. reconstruct gene regulatory networks in Arabidopsis flowers and find evidence for feed forward loops between transcription factors, miRNAs and their targets that determine organ-specific gene expression.

    • Dijun Chen
    • , Wenhao Yan
    • , Liang-Yu Fu
    •  & Kerstin Kaufmann
  • Article | | open

    Despite their importance in plant development and defence the properties of (1,3)-β-glucan remain largely unknown. Here, the authors find that addition of (1,3)-β-glucans increases the flexibility of cellulose and its resilience to high strain, an effect originating in molecular level interactions.

    • Radwa H. Abou-Saleh
    • , Mercedes C. Hernandez-Gomez
    • , Sam Amsbury
    • , Candelas Paniagua
    • , Matthieu Bourdon
    • , Shunsuke Miyashima
    • , Ykä Helariutta
    • , Martin Fuller
    • , Tatiana Budtova
    • , Simon D. Connell
    • , Michael E. Ries
    •  & Yoselin Benitez-Alfonso
  • Article | | open

    AUXIN RESPONSE FACTORS (ARFs) are a family of plant-specific transcriptional factors involved in auxin signaling. Here, the authors adapt DAP-seq technology to show the binding landscape of 14 maize ARFs and reveal class-specific binding properties and transcriptional coordination by ARFs from different classes.

    • Mary Galli
    • , Arjun Khakhar
    • , Zefu Lu
    • , Zongliang Chen
    • , Sidharth Sen
    • , Trupti Joshi
    • , Jennifer L. Nemhauser
    • , Robert J. Schmitz
    •  & Andrea Gallavotti