GENETICS AND POLYMORPHISM OF A DUPLICATED MALATE-DEHYDROGENASE (MDH) LOCUS IN THE GRASSHOPPER OXYA-JAPONICA-JAPONICA (ORTHOPTERA, ACRIDIDAE, OXYINAE)

被引：2

作者：

CHAN, KL

YUSHAYATI, Y

GUGANESWARAN, P

机构：

[1] Department of Genetics and Cellular Biology, University of Malaya, Kuala Lumpur

来源：

BIOCHEMICAL GENETICS | 1991年 / 29卷 / 7-8期

关键词：

GRASSHOPPER; OXYA-JAPONICA-JAPONICA; MALATE DEHYDROGENASE; DUPLICATED GENE; POLYMORPHISM;

D O I：

10.1007/BF00554141

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：

A biochemical genetic study of the enzyme malate dehydrogenase (MDH) was conducted in the grasshopper Oxya j. japonica. Analysis of MDH electrophoretic variation in this species of grasshopper shows that one of the two autosomal loci for MDH in grasshoppers, the Mdh-2 locus, controlling the anodal of MDH isozymes, is duplicated. Results of breeding studies confirm this and the observed polymorphism at the Mdh-2 locus in the two populations of Oxya j. japonica studied can be attributed to three forms of linked alleles at the duplicated locus in equilibrium in both populations. In this respect, all individuals of this species possess heterozygous allelic combinations at the duplicated Mdh-2 locus, which may account for the spread of the duplicated locus in the populations of this species of grasshopper.

引用

页码：337 / 344

页数：8

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