西南林业大学学报2016，Vol.36Issue(5)：10-15,6.DOI:10.11929/j.issn.2095-1914.2016.05.002
欧美杨与藏川杨杂交子代苗期性状QTLs定位分析
Mapping of QTLs in Hybrid Progeny of Populus euramericana and Populus szechuanica var. tibetica
摘要
Abstract
A population including 427 germplasm resources, crossed by female parent Populus euramericana I-108 and male parent Populus szechuanica var. tibetica were used to construct the genetic linkage map in seedling stage. The map contains 37 SSR makers and 6 linkage groups spanning 969. 1 cM with an average of 25. 14 cM be-tween markers. Genemap software was used to draw the marker linkage map. The four phenotype indicators of height (hs), single leaf photosynthetic rate (Pn), intercellular CO2 concentration (Ci), transpiration rate (Tr) are in line with normal distribution. The interval mapping method of software package MAPMAKER were used to map an-danalyze QTLs. 8 QTLs were detected for seedling growth and photosynthetic trait. 3 QTLs were detected for seed-ling height which explained 16. 4%, 20. 1% and 17. 8% of the phenotypic variation. 2 QTLs were detected for pho-tosynthetic rate which explained 10. 2% and 13. 7% of the phenotypic variation. 2 QTLs were detected for Intercel-lular CO2 concentration which explained 6. 7% and 8. 3% of the phenotypic variation. 1 QTL was detected for tran-spiration rate which explained 9. 7% of the phenotypic variation.关键词
藏川杨/欧美杨/杂交/遗传图谱/QTL定位/苗期性状Key words
Populus szechuanica var. tibetica/Populus euramericana/artificial hybridization/genetic map/QTL locationing/seedling trait分类
农业科技引用本文复制引用
李娟,郭斌,安新民..欧美杨与藏川杨杂交子代苗期性状QTLs定位分析[J].西南林业大学学报,2016,36(5):10-15,6.基金项目
国家“十二五”科技支撑项目(2012BAD01B0302)资助。 （2012BAD01B0302）
