QTL mapping of male sterility-related traits in a photoperiod and temperature-sensitive genic male sterile wheat line BS366
QTL mapping of male sterility-related traits in a photoperiod and temperature-sensitive genic male sterile wheat line BS366
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光周期和温度敏感的小麦雄性不育系BS366雄性不育相关性状的QTL定位
DOI：
10.1111/pbr.12811
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发表时间：
2020
期刊：
影响因子：
2
通讯作者：
Zhang Li-ping
中科院分区：
文献类型：
--
作者：
Yuan Shao-hua;Bai Jian-fang;Guo Hao-yu;Duan Wen-jing;Liu Zi-han;Zhang Feng-ting;Ma Jin-xiu;Zhao Chang-ping;Zhang Li-ping
光敏/温敏基因雄性不育（P/TGMS）性状对杂交小麦杂种优势的利用具有重要意义。本研究对P/TGMS小麦品系BS366与恢复系百育149杂交获得的172个双单倍体（DH）系在3个种植季的可育和不育环境下的育性进行了研究。根据国际结实率记录表型。利用167个SSR标记和1278个SNP标记构建连锁图谱，总长度为3748.94 cM，平均标记间隔为2.59 cM。鉴定出3个qtl并指定为QF。bhw-2DS, QF。bhw4bs和QF。hbw - 7al，分别解释6.9% ~ 12.8%、19.7% ~ 25.6%和7.2% ~ 8.8%的表型变异。这些结果为应用与雄性不育相关的分子标记改良两系杂交小麦育种体系奠定了良好的基础。
The photoperiod/temperature-sensitive genic male sterile (P/TGMS) character is important for use of heterosis in hybrid wheat. In the present study, the fertility of 172 doubled haploid (DH) lines derived from the cross between a P/TGMS wheat line BS366 and a restorer wheat line Baiyu149 was investigated under both fertile and sterile environments during three cropping seasons. The phenotype was recorded based on the international seed setting rate. A total of 167 SSR and 1,278 SNP markers were used to construct a linkage map, with a total length of 3,748.94 cM and an average marker interval of 2.59 cM. Three QTLs were identified and designated as QF.bhw-2DS, QF.bhw-4BS and QF.bhw-7Al, explaining 6.9%-12.8%, 19.7%-25.6% and 7.2%-8.8% of the phenotypic variances, respectively. These results lay a good basis for application of male sterility-related molecular markers in improvement of two-line hybrid wheat breeding system.