Molecular linkage map of Einkorn wheat: mapping of storage-protein and soft-glume genes and bread-making quality QTLs.
Molecular linkage map of Einkorn wheat: mapping of storage-protein and soft-glume genes and bread-making quality QTLs.
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DOI：
10.1017/s001667230200575x
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发表时间：
2002-10
期刊：
影响因子：
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通讯作者：
B. Taenzler;R. Esposti;P. Vaccino;A. Brandolini;S. Effgen;M. Heun;R. Schäfer-Pregl;B. Borghi
中科院分区：
文献类型：
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作者：
B. Taenzler;R. Esposti;P. Vaccino;A. Brandolini;S. Effgen;M. Heun;R. Schäfer-Pregl;B. Borghi
构建并整合了一粒小麦（Triticum monococcum L.）该图谱包括477个标记、32个RFLP、438个AFLP、1个形态标记（软颖标记）和6个贮藏蛋白标记，总长度为856 cM。具有隐性等位基因sog的性状Sog定位于连锁群2S。也许这就是T在六倍体和四倍体小麦中分别是Tg和Tg2的monococcum同源物。将编码种子贮藏蛋白的基因座分配到染色体1L（HMW GLU 1、2和Glu 1）、1S（LMW GLU 6、7、LMW GLU 1 - 4、omega GLI 1 - 4、gamma GLI 5和Gli-1）和6L（alpha/beta GLI 7 - 1-4）。对其中一个群体的SDS沉降值、比沉降值（SSV）和总蛋白含量等与面包品质相关的参数进行了研究。SDS沉降量和SSV检测到一个在不同环境中一致存在的QTL。该QTL在1S染色体上的定位与贮藏蛋白基因座的图谱定位基本一致。第二个QTL定位在5号染色体上。蛋白质含量的两个显著QTL分别定位于连锁群1和5。
Two molecular maps of Triticum monococcum L were produced and integrated. The integrated map includes a total of 477 markers, 32 RFLPs, 438 AFLPs, one morphological (soft glume (Sog)) and six storage-protein markers, and covers 856 cM. The trait Sog with the recessive allele sog maps to linkage group 2S. Probably, this is the T. monococcum homologue of Tg and Tg2 in hexaploid and tetraploid wheats, respectively. Loci coding for seed storage proteins were allocated to chromosomes 1L (HMW GLU1,2 and Glu1), 1S (LMW GLU6,7, LMW GLU1-4, omega GLI1-4, gamma GLI5 and Gli-1) and 6L (alpha/beta GLI7-14). Parameters related to bread-making quality (SDS sedimentation volume, specific sedimentation volume (SSV) and total protein content) were studied in one of the two populations. A QTL that is consistently present across environments was detected for SDS sedimentation volume and for SSV. The position of the QTL on chromosome 1S was in close agreement with the map positions of storage-protein loci. A second QTL was mapped on chromosome 5. For protein content, two significant QTLs were mapped to linkage groups 1 and 5.