Genome features of common vetch (Vicia sativa) in natural habitats.
Genome features of common vetch (Vicia sativa) in natural habitats.
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作者：
Shirasawa K;Kosugi S;Sasaki K;Ghelfi A;Okazaki K;Toyoda A;Hirakawa H;Isobe S
野生植物在其自然环境中通常对生物和非生物胁迫具有耐受性，而作物等驯化植物通常缺乏这种适应力。这种差异被认为是由于野生植物种群中基因组杂合性水平高而驯化作物物种中杂合性水平低。在这项研究中，普通箭舌豌豆（Vicia sativa）被用作模型来检验这一假设。普通野豌豆基因组（2n = 14）的大小估计为1.8Gb。基因组测序产生跨越1.5Gb的参考组装，从中预测31，146个基因。使用该序列作为参考，在日本12个天然野豌豆种群的1243株植物中发现了24，118个单核苷酸多态性。普通野豌豆基因组在群体水平上表现出高杂合性，在特定基因组区域观察到较低水平的杂合性。这种杂合性模式被认为是适应不同环境所必需的。本研究中产生的资源将为野生植物的重新驯化和农业改良提供见解。
Wild plants are often tolerant to biotic and abiotic stresses in their natural environments, whereas domesticated plants such as crops frequently lack such resilience. This difference is thought to be due to the high levels of genome heterozygosity in wild plant populations and the low levels of heterozygosity in domesticated crop species. In this study, common vetch ( Vicia sativa ) was used as a model to examine this hypothesis. The common vetch genome (2n = 14) was estimated as 1.8 Gb in size. Genome sequencing produced a reference assembly that spanned 1.5 Gb, from which 31,146 genes were predicted. Using this sequence as a reference, 24,118 single nucleotide polymorphisms were discovered in 1243 plants from 12 natural common vetch populations in Japan. Common vetch genomes exhibited high heterozygosity at the population level, with lower levels of heterozygosity observed at specific genome regions. Such patterns of heterozygosity are thought to be essential for adaptation to different environments. The resources generated in this study will provide insights into de novo domestication of wild plants and agricultural enhancement.
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影响因子：
4.9
作者：
Bao W;Kojima KK;Kohany O
通讯作者：
Kohany O
影响因子：
2.7
作者：
Cabanettes F;Klopp C
通讯作者：
Klopp C
DOI：
10.1007/s00122-015-2585-y
发表时间：
2015-11
期刊：
TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
影响因子：
--
作者：
Fu YB
通讯作者：
Fu YB
影响因子：
30.8
作者：
Bertioli, David John;Cannon, Steven B.;Ozias-Akins, Peggy
通讯作者：
Ozias-Akins, Peggy
影响因子：
5.8
作者：
Bradbury, Peter J.;Zhang, Zhiwu;Buckler, Edward S.
通讯作者：
Buckler, Edward S.