Identification of quantitative trait loci controlling grain size and shape in the D genome of synthetic hexaploid wheat lines.
Identification of quantitative trait loci controlling grain size and shape in the D genome of synthetic hexaploid wheat lines.
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DOI：
10.1270/jsbbs.63.423
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发表时间：
2013-12
期刊：
影响因子：
2.4
通讯作者：
Takumi S
中科院分区：
文献类型：
--
作者：
Okamoto Y;Nguyen AT;Yoshioka M;Iehisa JC;Takumi S
人工合成六倍体小麦是将粗山羊草重要农艺性状基因转移到普通小麦中的有效遗传资源。小麦籽粒大小和形状变异很大，是小麦育种的主要目标之一。桃木属的加入。为确定小麦D基因组中影响六倍体遗传背景下籽粒大小和形状变异的数量性状位点（QTL），利用SmartGrain数字图像分析软件测定了6个与籽粒大小和形状相关的参数，并对4个小麦人工合成六倍体F2作图群体进行了QTL分析。总共有18个QTL的6个参数上发现的7个D-基因组染色体的5个。这些QTL对小麦籽粒大小和粒形的变异有显著影响，表明D基因组QTL在六倍体小麦中可能至少部分发挥作用。因此，合成小麦品系与不同的D基因组从Ae。tauschii是用于鉴定在六倍体小麦中起作用的农艺学上重要的基因座的有用资源。
Synthetic hexaploid wheat is an effective genetic resource for transferring agronomically important genes from Aegilops tauschii to common wheat. Wide variation in grain size and shape, one of the main targets for wheat breeding, has been observed among Ae. tauschii accessions. To identify the quantitative trait loci (QTLs) responsible for grain size and shape variation in the wheat D genome under a hexaploid genetic background, six parameters related to grain size and shape were measured using SmartGrain digital image software and QTL analysis was conducted using four F2 mapping populations of wheat synthetic hexaploids. In total, 18 QTLs for the six parameters were found on five of the seven D-genome chromosomes. The identified QTLs significantly contributed to the variation in grain size and shape among the synthetic wheat lines, implying that the D-genome QTLs might be at least partly functional in hexaploid wheat. Thus, synthetic wheat lines with diverse D genomes from Ae. tauschii are useful resources for the identification of agronomically important loci that function in hexaploid wheat.
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影响因子：
3.3
作者：
Breseghello, F;Sorrells, ME
通讯作者：
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影响因子：
9.4
作者：
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作者：
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DOI：
10.1073/pnas.252763199
发表时间：
2003-03-04
影响因子：
11.1
作者：
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通讯作者：
Korol, A
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影响因子：
5.4
作者：
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通讯作者：
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