摘要
对１５个栽培稻和１７个普通野生稻的１９个性状进行了遗传距离测定及聚类分析。结果表明，栽培稻与普通野生稻是相互有联系的两大类群；源于相同地域分布的普通野生稻未必具有相近的亲缘，根据遗传距离的大小，聚为７个生态类型。遗传距离反映了类型间的亲缘关系，是选择杂交亲本的重要多数，对野生稻种资源的利用提供一定的依据。
Genetic distances estimation and clustering analysis were made on the base of 19 characteristics of 15 rice cultivars and 17 wild rice varieties.The results Showed that rice cultivars and wild rice varieties were two categories.Common wild rice varieties from same regional distribution were not necessarily closely related in consanguinity.Seven ecodemes were clustered according to the values of genetic distances which are important genetic parameters and can measure the consanguinity among ecodemes.The results mentioned above provided the theoretical basis for utilization of germ plasm resource and can be used in se-lecting parents for hybridization breeding.
出处
《华南农业大学学报》
CAS
CSCD
1995年第3期93-97,共5页
Journal of South China Agricultural University
关键词
栽培稻
野生稻
遗传距离
聚类分析
水稻
rice cultivars
common wild rice
genetic distance
clustering
