期刊
NEW PHYTOLOGIST
卷 213, 期 3, 页码 1477-1486出版社
WILEY
DOI: 10.1111/nph.14113
关键词
ancestor; evolution; origin; polyploidization; wheat
资金
- INRA ('Genetique et Amelioration des Plantes)
- Agence Nationale de la Recherche [ANR-2011-BSV6-00801]
- Agreenskills program ('TransGRAIN') [459]
- Region Auvergne, Allocation de recherche Territoire, Agriculture, Alimentation, Nutrition et Sante Humaine [23000720]
The origin of bread wheat (Triticum aestivum; AABBDD) has been a subject of controversy and of intense debate in the scientific community over the last few decades. In 2015, three articles published in New Phytologist discussed the origin of hexaploid bread wheat (AABBDD) from the diploid progenitors Triticumurartu (AA), a relative of Aegilops speltoides (BB) and Triticumtauschii (DD). Access to new genomic resources since 2013 has offered the opportunity to gain novel insights into the paleohistory of modern bread wheat, allowing characterization of its origin from its diploid progenitors at unprecedented resolution. We propose a reconciled evolutionary scenario for the modern bread wheat genome based on the complementary investigation of transposable element and mutation dynamics between diploid, tetraploid and hexaploid wheat. In this scenario, the structural asymmetry observed between the A, B and D subgenomes in hexaploid bread wheat derives from the cumulative effect of diploid progenitor divergence, the hybrid origin of the D subgenome, and subgenome partitioning following the polyploidization events.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据