GENETIC-DISTANCE AND ENZYME VARIATION IN LOCAL-POPULATIONS OF 2 ECHINODERMS FROM JAPANESE WATERS

被引：6
|
作者：
MATSUOKA, N
KOHYAMA, K
ASANO, H
机构：
[1] Department of Biology, Faculty of Science, Hirosaki University, Hirosaki
来源：
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 1995年 / 110卷 / 01期
关键词：
ECHINODERM; SEA-URCHIN; STARFISH; ENZYME ELECTROPHORESIS; ALLOZYME VARIATION; GENETIC DISTANCE; GEOGRAPHIC DIFFERENTIATION; DIVERGENCE TIME; PALEOGEOGRAPHY;
D O I：
10.1016/0305-0491(94)00126-F
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Genetic variation and differentiation in two conspecific local populations of the two echinoderms, Strongylocentrotus nudus (Echinoidea) and Asterina pectinifera (Asteroidea) from northern Japan were studied by enzyme electrophoresis. A. pectinifera showed much higher genetic variability than other shallow water echinoderms, and it may be due to the large population size. The genetic distances between two populations were 0.006 for S. nudus and 0.041 for A. pectinifera, and the allele frequencies at three genetic loci were significantly different between populations. These results suggest that the genetic differentiation has been accomplished in some degree between two local populations of each species. We discussed the relation between the divergence time of two populations estimated from genetic distance and the paleogeographical history of the Tsugaru Strait.
引用
收藏
页码：225 / 233
页数：9
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