小柯机器人

德国慕尼黑工业大学Klaus F. X. Mayer、Chris-Carolin Schön等研究人员合作绘制出欧洲玉米基因组图谱。这一研究成果于2020年7月27日在线发表在《自然—遗传学》杂志上。

Title: European maize genomes highlight intraspecies variation in repeat and gene content

Author: Georg Haberer, Nadia Kamal, Eva Bauer, Heidrun Gundlach, Iris Fischer, Michael A. Seidel, Manuel Spannagl, Caroline Marcon, Alevtina Ruban, Claude Urbany, Adnane Nemri, Frank Hochholdinger, Milena Ouzunova, Andreas Houben, Chris-Carolin Schn, Klaus F. X. Mayer

Issue&Volume: 2020-07-27

Abstract: The diversity of maize (Zea mays) is the backbone of modern heterotic patterns and hybrid breeding. Historically, US farmers exploited this variability to establish today’s highly productive Corn Belt inbred lines. Here, we report de novo genome sequences of four European flint lines assembled to pseudomolecules with scaffold N50 ranging from 6.1 to 10.4Mb. Comparative analyses with two US Corn Belt lines explains the pronounced differences between both germplasms. While overall syntenic order and consolidated gene annotations reveal only moderate pangenomic differences, whole-genome alignments delineating the core and dispensable genome, and the analysis of heterochromatic knobs and orthologous long terminal repeat retrotransposons unveil the dynamics of the maize genome. The high-quality genome sequences of the flint pool complement the maize pangenome and provide an important tool to study maize improvement at a genome scale and to enhance modern hybrid breeding.

DOI: 10.1038/s41588-020-0671-9

Source: https://www.nature.com/articles/s41588-020-0671-9

Nature Genetics：《自然—遗传学》，创刊于1992年。隶属于施普林格·自然出版集团，最新IF：41.307
官方网址：https://www.nature.com/ng/
投稿链接：https://mts-ng.nature.com/cgi-bin/main.plex