中国海洋大学学报（自然科学版）2012，Vol.42Issue(1)：99-105,7.
青岛不同野生群体的单倍体和二倍体龙须菜的AFLP遗传多样性分析与比较
Analysis and Comparison on Genetic Diversity of Haploid and Diploid Gracilaria lemaneiformis Polulations from Different Places of Qingdao By AFLP
摘要
Abstract
Inter- and intra-population genetic diversity of haploid and diploid Gracilaria lemaneiformis samples from Zhanshan Bay and Taiwan Road of Qingdao were analyzed by AFLP technique. The Na, Ne, H and / was 1. 1699, 1. 095, 0. 0582, 0. 0884 for haploid population and 1. 333, 1. 2270, 0. 1297,0. 1908 for diploid population of Zhanshan Bay, respectively. The above genetic index was 1. 1373,1. 0899, 0. 0504, 0. 0746 for haploid and 1. 2092, 1. 1386, 0. 0825, 0. 1219 for diploid of Taiwan Road, respectively. Genetic diversity between different phases was revealed by the comparison of genetic index The diploid showed higher genetic variation than haploid from the same geographical population. The genetic diversity influenced by phases was stronger than those from geographical or environmental factors. The Ht, Gst and Nm of haploid population between Zhanshan Bay and Taiwan Road was 0. 0581, 0. 0669 and 6. 9683 respectively, which showed great difference compared with those of diploid population, with Ht 0.1799, Gst 0. 3271 and Nm 1. 0285. Haploid and diploid populations are two populations located at different differentiation level. A strong gene flow between haploid populations was displayed. The genetic diversity was low in G. Lemaneiformis. The data supplied support for selection of breeding strategy.关键词
龙须菜/单倍体/二倍体/AFLP/遗传多样性Key words
Gracilaria lemaneiformis/ haploid/ diploid/ AFLP/ genetic diversity分类
海洋科学引用本文复制引用
丁弘叶,隋正红,仲洁,周伟,王钟霞..青岛不同野生群体的单倍体和二倍体龙须菜的AFLP遗传多样性分析与比较[J].中国海洋大学学报（自然科学版）,2012,42(1):99-105,7.基金项目
农业部公益性项目(200903030)资助 （200903030）
