棉 花 学 报           Cotton Science     2009，21(6)：468-473

RAPD Analysis of Gossypium bickii and Its Hybrid Descendents
QU Yun-fang¹，HUANG Jin-ling^1*，YI Zhi-ben²，LI Bing-lin¹
（1.Dept of Agron, Shanxi Agricultural University, Taigu, Shanxi 030801, China; 2.North University of China, Taiyuan, Shanxi 030051, China）

Abstract：The interspecific hybrids were derived from ［(Gossypium arboreum×Gossypium bickii)×Gossypium hirsutum ］,(G.arboreum×G.bickii)×Gossypium barbadense］,［(G.arboreum×G.bickii)×(G.hirsutum×Gossypium mustelinum)］,(G.arboreum×G.bickii)×(G.hirsutum×Gossypium tomentosum)］after doubling F₁ of ( G. arboreum × G.bickii ). These hybrids and their parents were analyzed by RAPD. The results showed that：（1）There were 127 amplified DNA bands from 15 primers, 102 bands (80.3 %) were polymorphic；(2) Parents bands and specific bands of hybrids were detected in hybrids; (3) The cluster analysis of materials was studied by group-average method from SAS software. Cluster analysis revealed that these materials were divided into 3 groups. All the results verified the authenticity of hybrids.
Key words：Gossypium bickii；hybrid descendents；RAPD    [Full Text, 3262]