Genetic analysis of photoperiod sensitivity in a tropical by temperate maize recombinant inbred population using molecular markers
Genetic analysis of photoperiod sensitivity in a tropical by temperate maize recombinant inbred population using molecular markers
复制标题
利用分子标记对热带温带玉米重组自交群体的光周期敏感性进行遗传分析
DOI：
10.1007/s00122-008-0851-y
复制
发表时间：
2008-08
影响因子：
5.4
通讯作者：
Chen, Y. H.
中科院分区：
文献类型：
--
作者：
Sun, Z. H.;Cheng, F. F.;Tang, J. H.;Wang, C. L.;Wu, L. C.;Ku, L. X.;Chen, Y. H.
光周期敏感性是玉米栽培中的重要考虑因素。开花时间受光周期的影响，对光周期的敏感性限制了不同纬度之间成功交换种质的潜力。为了揭示玉米光周期敏感性的遗传基础，对207个温带和热带自交系杂交的重组自交系在长日和短日环境下进行了2年的光周期敏感性评价。利用237个SSR标记构建了遗传连锁图谱，图谱总长度为1974.3cM，标记间平均距离为8.33cM。利用复合区间作图法和多重区间作图法检测到5个光周期敏感性状的29个QTL。长日照条件下开花时间、株高和叶片数的QTL聚集在第10号染色体上，而短日照条件下的QTL则聚集在第3号染色体上。在第10染色体bin 10.04区域检测到与长日照光周期敏感性及相关性状相关的QTL。这些结果表明，该区域可能含有重要的光周期敏感元件。
Photoperiod sensitivity is an important consideration in maize cultivation. Flowering time is affected by photoperiod and sensitivity to it limits the potential for successful exchange of germplasm across different latitudes. For resolving the genetic basis of photoperiod sensitivity in maize, a set of 207 recombinant inbred lines derived from a temperate and tropical inbred line cross was evaluated for 2 years in a long-day and short-day environment. Genetic linkage maps were constructed using 237 SSR markers with a total length 1,974.3 cM, and an average space between two makers of 8.33 cM. Twenty-nine QTL were detected for the five measured photoperiod sensitivity traits using composite interval mapping and multiple interval mapping. QTL for flowering time, plant height and leaf number, under long-day conditions, were found clustered on chromosome 10, while QTL for short-day conditions resided on chromosome 3. The QTL in the bin 10.04 region of chromosome 10 were detected associated with photoperiod sensitivity and related traits during long days. These results indicated that this region might contain an important photoperiod sensitivity element.
登录
查看更多内容
影响因子：
0.6
作者：
M. Goodman
通讯作者：
M. Goodman
影响因子：
5.4
作者：
Ribaut, JM;Hoisington, DA;GonzalezdeLeon, D
通讯作者：
GonzalezdeLeon, D
影响因子：
2.3
作者：
KOESTER, RP;SISCO, PH;STUBER, CW
通讯作者：
STUBER, CW
影响因子：
5.4
作者：
L. R. Veldboom;Michael Lee;W. Woodman
通讯作者：
L. R. Veldboom;Michael Lee;W. Woodman
影响因子：
5.4
作者：
S. Tallury;M. Goodman
通讯作者：
S. Tallury;M. Goodman