%0 Journal Article
%T Genetic Dissection of Vascular Bundle Systems in Peduncle and Panicle Characters in Rice (Oryza sativa L.) by Means of RFLP Markers<br>用RFLP标记剖析水稻穗颈维管束及穗部性状的遗传基础
%A CHEN Shun-Qiang~
%A WANG Yang~
%A ZHANG Zhi-Hong~
%A WANG Ling-Xia~
%A HU Zhong-Li~
%A LI Ping~
%A ZHU Li-Huang~
%A ZHU Ying-Guo~ Biology
%A College of Life Sciences
%A Wuhan University
%A Wuhan
%A China
%A Rice Research Institute
%A Sichuan Agricultural University
%A Chengdu
%A China
%A Institute of Genetics
%A Developmental Biology
%A The Chinese Academy of Sciences
%A Beijing
%A China
%A <br>陈顺强
%A 汪洋
%A 章志宏
%A 王玲霞
%A 胡中立
%A 李平
%A 朱立煌
%A 朱英国
%J 植物科学学报
%D 2004
%I 
%X A doubled-haploid rice population,consisting of 81 DH lines derived from the F_1 hybrid of a cross between indica cultivar and japonica cultivar,was used to map quantitative trait loci(QTL) controlling numbers of vascular bundles in the peduncle and the top second internode,primary and secondary rachis branches,and spikelets per panicle.A total of 16 QTLs were detected.Among them,7 QTLs with larger effects each explained more than 20% of the total variation for the traits concerned.A cluster of 4 QTLs for the traits studied was located to the genomic region of about 35 cM in length flanked by the marker RZ776 and C11 on chromosome 1.This chromosome region from the parent 'Gui630' contributed to the increasing phenotypic values of the 4 traits,viz.numbers of large vascular bundles in peduncle and top second internode,small vascular bundles in top second internode,and secondary rachis branches.The present paper also discussed the strategy for improving of vascular bundle system in peduncle via pyramiding favorable QTLs for the traits concerned using marker-assisted selection.
%K Rice ( Oryza sativa L
%K )
%K Doubled-haploid population
%K Vascular bundles in peduncle
%K RFLP
%K Quantitative trait loci (QTL)<br>水稻
%K DH群体
%K 穗颈维管束
%K RFLP
%K 数量性状基因座位（QTL）
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=9973DE552EA54506F7AABD4780345ED2&aid=DEF2A5735A8618E2&yid=D0E58B75BFD8E51C&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=23CCDDCD68FFCC2F&eid=659D3B06EBF534A7&journal_id=1000-470X&journal_name=武汉植物学研究&referenced_num=6&reference_num=23