Genome evolution

Definition

Genome evolution is the process by which a genome changes in structure over time, through mutation, horizontal gene transfer, and sexual reproduction. The study of genome evolution involves multiple fields including structural analysis of the genome, genomic parasites, gene and ancient genome duplications, polyploidy, and comparative genomics.

Latest Research and Reviews

  • Research | | open

    A combination of advanced sequencing and mapping techniques is used to produce a reference genome of Aegilops tauschii, progenitor of the wheat D genome, providing a valuable resource for comparative genetic studies.

    • Ming-Cheng Luo
    • , Yong Q. Gu
    • , Daniela Puiu
    • , Hao Wang
    • , Sven O. Twardziok
    • , Karin R. Deal
    • , Naxin Huo
    • , Tingting Zhu
    • , Le Wang
    • , Yi Wang
    • , Patrick E. McGuire
    • , Shuyang Liu
    • , Hai Long
    • , Ramesh K. Ramasamy
    • , Juan C. Rodriguez
    • , Sonny L. Van
    • , Luxia Yuan
    • , Zhenzhong Wang
    • , Zhiqiang Xia
    • , Lichan Xiao
    • , Olin D. Anderson
    • , Shuhong Ouyang
    • , Yong Liang
    • , Aleksey V. Zimin
    • , Geo Pertea
    • , Peng Qi
    • , Jeffrey L. Bennetzen
    • , Xiongtao Dai
    • , Matthew W. Dawson
    • , Hans-Georg Müller
    • , Karl Kugler
    • , Lorena Rivarola-Duarte
    • , Manuel Spannagl
    • , Klaus F. X. Mayer
    • , Fu-Hao Lu
    • , Michael W. Bevan
    • , Philippe Leroy
    • , Pingchuan Li
    • , Frank M. You
    • , Qixin Sun
    • , Zhiyong Liu
    • , Eric Lyons
    • , Thomas Wicker
    • , Steven L. Salzberg
    • , Katrien M. Devos
    •  & Jan Dvořák
  • Research | | open

    The canonical scenario of sex chromosome evolution is through the differentiation of ancestral pairs of autosomes. Here, Fraïsse and colleagues use a comparative genomic analysis that shows the deep conservation of the Z chromosome in Lepidoptera and supports a non-canonical origin of the W chromosome.

    • Christelle Fraïsse
    • , Marion A. L. Picard
    •  & Beatriz Vicoso
  • Research |

    Leishmania donovani is an important human pathogen. Here, the authors show that aneuploidy turnover and haplotype selection are two mechanisms by which L. donovani adapts to environmental fluctuations inside the mammalian host.

    • Pablo Prieto Barja
    • , Pascale Pescher
    • , Giovanni Bussotti
    • , Franck Dumetz
    • , Hideo Imamura
    • , Darek Kedra
    • , Malgorzata Domagalska
    • , Victor Chaumeau
    • , Heinz Himmelbauer
    • , Michel Pages
    • , Yvon Sterkers
    • , Jean-Claude Dujardin
    • , Cedric Notredame
    •  & Gerald Frank Späth
  • Research | | open

    Several models have been proposed to explain the emergence of sex chromosomes. Here, through comparative genomics and mutant analysis, Harkess et al. show that linked but separate genes on the Y chromosome are responsible for sex determination in Asparagus, supporting a two-gene model for sex chromosome evolution.

    • Alex Harkess
    • , Jinsong Zhou
    • , Chunyan Xu
    • , John E. Bowers
    • , Ron Van der Hulst
    • , Saravanaraj Ayyampalayam
    • , Francesco Mercati
    • , Paolo Riccardi
    • , Michael R. McKain
    • , Atul Kakrana
    • , Haibao Tang
    • , Jeremy Ray
    • , John Groenendijk
    • , Siwaret Arikit
    • , Sandra M. Mathioni
    • , Mayumi Nakano
    • , Hongyan Shan
    • , Alexa Telgmann-Rauber
    • , Akira Kanno
    • , Zhen Yue
    • , Haixin Chen
    • , Wenqi Li
    • , Yanling Chen
    • , Xiangyang Xu
    • , Yueping Zhang
    • , Shaochun Luo
    • , Helong Chen
    • , Jianming Gao
    • , Zichao Mao
    • , J. Chris Pires
    • , Meizhong Luo
    • , Dave Kudrna
    • , Rod A. Wing
    • , Blake C. Meyers
    • , Kexian Yi
    • , Hongzhi Kong
    • , Pierre Lavrijsen
    • , Francesco Sunseri
    • , Agostino Falavigna
    • , Yin Ye
    • , James H. Leebens-Mack
    •  & Guangyu Chen
  • Research | | open

    Genomic rearrangements can be either a cause or a consequence of large-scale suppression of recombination in a genome. Here, Sun et al. show that recombination may be suppressed in collinear genomic regions, and that inversions may accumulate over time in a derived manner.

    • Yu Sun
    • , Jesper Svedberg
    • , Markus Hiltunen
    • , Pádraic Corcoran
    •  & Hanna Johannesson

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