%0 Journal Article
%T Identification of QTL associated with tassel branch number and total tassel length in maize<br>玉米雄穗分枝数与主轴长的QTL鉴定
%A GAO Shi-Bin
%A ZHAO Mao-Jun
%A LAN Hai
%A ZHANG Zhi-Ming
%A <br>高世斌
%A 赵茂俊
%A 兰海
%A 张志明
%J 遗传
%D 2007
%I 
%X On the basis of 103 SSR linkage map, QTLs associated with tassel branch number (TBN) and total tassel length (TTL) were studied by composite interval mapping with F3 families, which were developed from the cross N87-1 x 9526 and surveyed for phenotype under normal condition (CK) and drought-stress environment (DS). Four QTLs on chromosomes 2, 5, 7, and 10, respectively, were associated with TBN under DS, two of which were not only repeatedly detected on chromosomes 5 and 7 under the CK but also were linked to some QTLs related to drought tolerance that had already been reported in the same mapping population. The two QTLs controlling TTL were identified on chromosomes 2 and 6 under CK, while three QTLs for TTL were detected on chromosomes 2, 4, and 10 under DS. The QTL on chromosome 2 for TTL was consistent under two environments. Most of QTLs for TBN were partial additive while QTLs for TTL were dominant and over-dominant in terms of gene action.
%K maize (Zea mays L
%K )
%K tassel branch number
%K total tassel length
%K quantitative trait loci<br>玉米
%K 雄穗分枝数
%K 雄穗主轴长
%K 数量性状座位
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=3E23F50E071DF18E21B2F5AEE4F1FA5E&aid=91B516A018F0E287&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=5D311CA918CA9A03&sid=4D5C5090B0F83CF9&eid=5E7C14876566242F&journal_id=0253-9772&journal_name=遗传&referenced_num=1&reference_num=18