Abstract:TRAP technique was used to analyze the genetic diversity and relationship of 47 purple lettuce
(Lactuca sativa L. ) species.20 pairs of TRAP primers amplified polymorphic bands were 430,and the
polymorphic rate was 67.08%.The genetic similarity coefficient was 0.706 3-0.982 8.The average Nei’s gene
diversity index and Shannon’s information index were 0.255 3 and 0.397 6,respectively,indicating that the low
degree of genetic diversity in purple lettuce.The cluster analysis divided these 47 species into 2 major groups,
and the Ⅱ group could be devided into 5 subgroups.The species with similar leaf morphology were clustered
together,they had closer genetic relationship.
王亚楠, 韩莹琰, 范双喜, 卜斌. 紫色叶用莴苣遗传多样性及亲缘关系的TRAP 分析[J]. 中国蔬菜, 2015, 1(3): 25-.
WANG Ya-Nan, HAN Ying-Yan, FAN Shuang-Xi, BU Bin. Analysis of Genetic Diversity and Relationship in Purple Lettuce by TRAP
Technique. , 2015, 1(3): 25-.