ÃÞ »¨ ѧ ±¨      Cotton Science     2008£¬20(6)£º473-476

 

 

QTL Analysis on Cotton Fiber for Quality Traits in Xinjiang
AI Xian-tao£¬LI Xue-yuan*£¬MO Ming£¬TU Er-xun-jiang£¬WANG Jun-duo£¬SUN Guo-qing£¬SHA Hong
£¨Economic Crop Research Institute, Xinjiang Academy of Agricultural Sciences , Urumqi , 830091, China£©ª¤

Abstract£ºThe parents used are 9-1696 and CCRI 35, that 9-1696 is high quality mid-length fiber cotton by ower-breeding and CCRI 35 is major-plant in Xinjiang. Based on the cross and 12 SSR makers information of 180 plants of F2 population and 135 plants of B1 population, the inheritance of 4 fiber quality traits were studied by the methods of QTLs.The major results are as follows: Six QTLs were detected and linked to four fiber quality traits by using F2 population and interval mapping method (at the level of LOD>2). One QTL was linked to Fiber length; three QTLs were linked to strength; one QTL was linked to uniformity, one QTL was linked to elongation. Two QTLs were identified based on B1 population, and linked to fiber length and strength respectively.
Key words£ºupland cotton£»fiber quality£»SSR£»QTL    [Full Text, 1619KB]