Volume 4 Issue 2, February 2018

Volume 4 Issue 2

Grain picking in the green Sahara

Wild cereals, weeds in modern agriculture, are traditional food plants in subsistence economies. Early Holocene millet and sorghum seeds from central Sahara provide early evidence of cultivation without domestication by African foragers.

See Mercuri et al.

Image: A. M. Mercuri & S. Sala. Cover Design: Bethany Vukomanovic.

Editorial

  • Editorial |

    Sixty years ago, Francis Crick articulated the central dogma of molecular biology to explain the sequential information flow between genes and proteins. Nowadays our understanding of genes and the information they convey is no longer limited to the single-molecule level.

Comment & Opinion

  • Comment |

    The recently published reference genome of Aegilops tauschii provides new insights into the originator of the D genome donor of hexaploid wheat. This will be a foundation for exploring the genomic diversity underpinning adaptive traits in wheat, and ultimately advance wheat improvement efforts.

    • Awais Rasheed
    • , Francis C. Ogbonnaya
    • , Evans Lagudah
    • , Rudi Appels
    •  & Zhonghu He

Research Highlights

News & Views

  • News & Views |

    A new genome sequence of the enigmatic seed plant Gnetum montanum reveals a nuclear genome that is as distinct as the rest of its biology.

    • Michael S. Barker
  • News & Views |

    High-throughput chromosome conformation capture studies comparing diploid and polyploid cotton varieties revealed evidence for stereotypical changes in chromatin contacts upon polyploidization.

    • Eric Lam
  • News & Views |

    A major transitional step in Earth’s history was the conquest of land by plants, which fundamentally changed carbon cycling and elevated oxygen levels. In a moss model of early land plants, three out of six MIKCC-type MADS-box transcription factors ensure external water conduction and the function of motile sperm.

    • Ralf Reski
  • News & Views |

    Auxin-induced callus formation, known as a type of cell reprogramming, involves several transcription factors that act in lateral root initiation for plant development. Now, a new partnership of transcription factors is identified to reveal the regulatory network of auxin-induced cell reprogramming.

    • Munetaka Sugiyama

Research

  • Article | | open

    The evolution and phylogenetic placement of gnetophytes have remained elusive. The draft genome for a gnetophyte, Gnetum montanum, is now reported. Comparative analyses identify genomic features distinguishing gnetophytes from other gymnosperms.

    • Tao Wan
    • , Zhi-Ming Liu
    • , Ling-Fei Li
    • , Andrew R. Leitch
    • , Ilia J. Leitch
    • , Rolf Lohaus
    • , Zhong-Jian Liu
    • , Hai-Ping Xin
    • , Yan-Bing Gong
    • , Yang Liu
    • , Wen-Cai Wang
    • , Ling-Yun Chen
    • , Yong Yang
    • , Laura J. Kelly
    • , Ji Yang
    • , Jin-Ling Huang
    • , Zhen Li
    • , Ping Liu
    • , Li Zhang
    • , Hong-Mei Liu
    • , Hui Wang
    • , Shu-Han Deng
    • , Meng Liu
    • , Ji Li
    • , Lu Ma
    • , Yan Liu
    • , Yang Lei
    • , Wei Xu
    • , Ling-Qing Wu
    • , Fan Liu
    • , Qian Ma
    • , Xin-Ran Yu
    • , Zhi Jiang
    • , Guo-Qiang Zhang
    • , Shao-Hua Li
    • , Rui-Qiang Li
    • , Shou-Zhou Zhang
    • , Qing-Feng Wang
    • , Yves Van de Peer
    • , Jin-Bo Zhang
    •  & Xiao-Ming Wang
  • Article |

    Knowledge of three-dimensional (3D) genome structure and how polyploidization shapes it remains poor. A study now characterizes and compares 3D genomes for diploid and tetraploid cotton, showing how allopolyploidization affects 3D genome architecture and transcriptional regulation.

    • Maojun Wang
    • , Pengcheng Wang
    • , Min Lin
    • , Zhengxiu Ye
    • , Guoliang Li
    • , Lili Tu
    • , Chao Shen
    • , Jianying Li
    • , Qingyong Yang
    •  & Xianlong Zhang

    Collection:

  • Article |

    Plants have remarkable regeneration ability under the control of phytohormones such as auxin and cytokinin. Here, the researchers identify a heterodimer that consists of two key transcription factors mediating the auxin-induced callus formation.

    • Chongyi Xu
    • , Huifen Cao
    • , Qianqian Zhang
    • , Hongzhe Wang
    • , Wei Xin
    • , Enjun Xu
    • , Shiqi Zhang
    • , Ruixue Yu
    • , Dongxue Yu
    •  & Yuxin Hu
  • Article |

    The transition from darkness to light alters thylakoid membrane architecture and the organization of photosynthetic complexes. Structured illumination microscopy shows increased but smaller grana, with consequences for photosynthetic efficiency and quenching.

    • William H. J. Wood
    • , Craig MacGregor-Chatwin
    • , Samuel F. H. Barnett
    • , Guy E. Mayneord
    • , Xia Huang
    • , Jamie K. Hobbs
    • , C. Neil Hunter
    •  & Matthew P. Johnson

Amendments & Corrections