期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 58, 期 13, 页码 3749-3764出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erm225
关键词
association mapping; biological and agronomic traits; disease resistance; genetic variation; grain storage proteins; grain texture; salt and drought tolerance; T. monococcum
资金
- Biotechnology and Biological Sciences Research Council [BBS/E/C/00004880, BBS/E/C/00004494] Funding Source: Medline
- BBSRC [BBS/E/C/00004880] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/E/C/00004494, BBS/E/C/00004880] Funding Source: researchfish
Einkorn wheat Triticum monococcum (2n=2x=14, A(m)A(m)) is one of the earliest domesticated crops. However, it was abandoned for cultivation before the Bronze Age and has infrequently been used in wheat breeding. Little is known about the genetic variation in adaptively important biological traits in T. monococcum. A collection of 30 accessions of diverse geographic origins were characterized for phenotypic variation in various agro-morphological traits including grain storage proteins and endosperm texture, nucleotide-binding site (NBS) domain profiles of resistance (R) genes and resistance gene analogues (RGAs), and germination under salt and drought stresses. Forty-six SSR (single sequence repeat) markers from bread wheat (T. aestivum, 2n=6x=42, AABBDD) A genome were used to establish trait-marker associations using linear mixed models. Multiple significant associations were identified, some of which were on chromosomal regions containing previously known genetic loci. It is concluded that T. monococcum possesses large genetic diversity in multiple traits. The findings also indicate that the efficiency of association mapping is much higher in T. monococcum than in other plant species. The use of T. monococcum as a reference species for wheat functional genomics is discussed.
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