ÃÞ »¨ ѧ ±¨     Cotton Science 2008 £¬ 20(6) £º 460-469

 

 

Advances in Cotton Genetic Linkage Map and Its Application
ZHANG Ke, ZHANG Zheng-sheng*
(Key Laboratory of Biotechnology & Crop Quality Improvement of Ministry of Agriculture, College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China)

Abstract£ºGenetic linkage map based upon DNA marker provides an essential tool to study genome structure, function, and evolution. With the invention and application of DNA markers, many kinds of markers, such as RFLP, RAPD, AFLP, SSR and SRAP, have been employed in mapping many importantly agronomical genes and/or QTLs. Through analyzing the present allotetraploid cotton genetic linkage map, we found that the representative interspecific linkage map was relatively saturated, and the intraspecific upland linkage map only covered a small part of cotton genome. Meanwhile, many studies about agronomical QTL mapping completed, and the studies about MAS, map-based cloning and physical map have started. Therefore, the further work is to increase the marker density of interspecific linkage map, and construct the intraspecific upland genome-wide linkage map.
Key words£ºcotton; molecular markers; genetic linkage maps; application      [Full Text, 4398KB]