THE COMPLEX ROBERTSONIAN SYSTEM OF DICHROPLUS-PRATENSIS (MELANOPLINAE, ACRIDIDAE) .1. GEOGRAPHIC-DISTRIBUTION OF FUSION POLYMORPHISMS

被引：12

作者：

BIDAU, CJ

BELINCO, C

MIROL, P

TOSTO, D

机构：

[1] BIOL SCI CTR, DEPT GENET & CELL BIOL, ST PAUL, MN USA

[2] UNIV BUENOS AIRES, FAC CIENCIAS EXACTAS & NAT, DEPT CIENCIAS BIOL, GENET LAB, RA-1428 BUENOS AIRES, ARGENTINA

来源：

GENETICS SELECTION EVOLUTION | 1991年 / 23卷 / 5-6期

关键词：

CENTRIC FUSION; POLYMORPHISM; POLYTYPISM; GRASSHOPPER;

D O I：

10.1051/gse:19910501

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

A chromosomal survey was performed in Argentine natural populations of the South-American melanopline grasshopper Dichroplus pratensis Bruner (Acrididae). The cytogenetic study of samples from different populations revealed the existence of at least 7 distinct Robertsonian translocations which involve the 6 L (large) autosomes of the 2n = 20 (female)/19 (male) all-telocentric standard karyotype. Some of the fusions thus share monobrachial homologies. The Robertsonian variation found in D pratensis is discussed in relation to a model of chromosomal evolution for the species in which the changes in recombination patterns produced by the fusions are central.

引用

页码：353 / 370

页数：18

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