中文摘要：

利用位于家鸡24条染色体上的33个微卫星标记对云南文山山地乌骨鸡50个个体进行了遗传多样性检测。共检测到118个等位基因，每个座位等位基因数目从2到9个不等，平均等位基因数为3．5758±1．5619，有效等位基因数在1．4274—6．1250之间，平均为2．9750±1．1389；群体平均表观杂合度、期望杂合度及平均多态信息含量分别为0．8927±0．2172，0．6214±0．1259和0．5447±0．1528。研究结果表明：文山山地乌骨鸡群体内存在丰富的遗传多样性。

英文摘要：

In the present paper, the microsatellite DNA polymorphisms of 50 individuals sampled from the chicken population of Wenshan mountanious region, Yunnan province, were assayed by using PCR and polyacrylaminde gel electrophoresis. Out of 33 microsatellite loci tested which are located on chicken＇s 24 chromosomes, a total of 118 alleles were detected, and the number of alleles varied from 2 to 9, while the number of effective alleles varied from 1. 427 4 to 6. 125 0, giving the mean value of 3.575 8 ± 1. 561 9 alleles and 2. 975 0 ±1. 138 93 effective alleles per locus. The average observed heterozygosity, expected heterozygosity and polymorphism information content were estimated as 0. 892 7± 0. 217 2, 0. 621 4 ±0. 125 9 and 0. 544 7 ±0. 152 8, respectively. The results revealed that the genetic variability in the chicken population analyzed was rich.