玉米杂交不亲和ga1基因的初步定位  

Genetic mapping of a cross-incompatibility gene ga1 in maize

作　　者：季洪强[1] 崔子田[1] 邵可可[1] 王成业[2] 冯兴跃 张威 汤继华[1] 

机构地区：[1]河南农业大学农学院,河南郑州450002 [2]驻马店市农业科学研究所,河南驻马店463000 [3]博爱县农业科学研究所,河南博爱454450 [4]汾阳市农业技术推广站,山西汾阳032200

出　　处：《河南农业大学学报》2010年第4期375-377,共3页Journal of Henan Agricultural University

基　　金：河南省重大专项资助项目(0620010200)

摘　　要：对杂交不亲和系6477与常规自交系87-1的BC1分离群体的遗传机制进行了分析,发现该材料的杂交不亲和性由1对隐性基因ga1控制.采用SSR分子标记结合BSA分群,将该基因定位在玉米的第4染色体上,与SSR标记um c1288和um c1294连锁,遗传距离分别为19.0和8.7 cM.A set of BC1 population derived from the cross-incompatibility line 6477 and normal inbred line 87-1,was used as materials to analyze the genetic mechanism of the cross-incompatibility line.The result demonstrated that the cross-incompatibility line was controlled by a ressive gene ga1.Using the technique of SSR molecular marker combined with BSA population segregating the gene was mapped on chromosome 4,linked with SSR markers umc1288 and umc1294,and the genetic distance was 19.0 and 8.7 cM respectively.

关 键 词：玉米 杂交不亲和 基因 定位 

分 类 号：S513[农业科学—作物学]