%0 Journal Article
%T QTL mapping of plant height and ear position in maize (Zea mays L.)<br>玉米株高和穗位高的QTL定位
%A YANG Xiao-Jun
%A LU Ming
%A ZHANG Shi-Huang
%A ZHOU Fang
%A QU Yan-Ying
%A XIE Chuan-Xiao
%A <br>杨晓军
%A 路明
%A 张世煌
%A 周芳
%A 曲延英
%A 谢传晓
%J 遗传
%D 2008
%I 
%X Abstract: A molecular linkage map for the maize hybrid of cross between Ye478 and Dan340 was constructed by using 150 co-dominant SSR markers. The total map length was 1 478.7 cM with an average interval of 10.0 cM. Composite interval mapping was used to identify the plant height (PH) and ear position (EH) QTL at 5 environments based on the phenotypic data of 397 F2:3 families. Then 21 PH and 25 EH relevant QTL were identified. The mean contribution of 12.2% and 14.9% QTL for plant height was identified at the interval of umc2025 - umc1035 on chromosome 1 and umc1822 - bnlg1118 on chromosome 5, respectively. Meanwhile, the mean contribution of 10.2% and 22.8% to ear position were identified at the interval of phi029 - umc1102 on chromosome 3 and phi109188 - bnlg1118 on chromosome 5. The main QTL for PH and EH were both found at the regions of Bin5.05 - 5.07 on chromosome5. The additive and partial dominant effects were the main genetic basis for plant height and ear position in maize. The effect of population size and environments on QTL map-ping were analyzed.
%K 玉米
%K 株高
%K 穗位高
%K QTL定位
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=3E23F50E071DF18E21B2F5AEE4F1FA5E&aid=95223030C09154060A74C887C88863CA&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=708DD6B15D2464E8&sid=E9CEAC7B2ECF0E2F&eid=7AC3CCCDC6EFABE9&journal_id=0253-9772&journal_name=遗传&referenced_num=6&reference_num=38