ABSENCE OF REPETITIVE DNA-SEQUENCES ASSOCIATED WITH SEX-CHROMOSOMES IN NATURAL-POPULATIONS OF THE TRINIDAD GUPPY (POECILIA-RETICULATA)

Authors
HORNADAY K ALEXANDER S BREDEN F
Citation
K. Hornaday et al., ABSENCE OF REPETITIVE DNA-SEQUENCES ASSOCIATED WITH SEX-CHROMOSOMES IN NATURAL-POPULATIONS OF THE TRINIDAD GUPPY (POECILIA-RETICULATA), Journal of molecular evolution, 39(4), 1994, pp. 431-433
Citations number
8
Categorie Soggetti
Genetics & Heredity",Biology
Journal title
Journal of molecular evolution → ACNP
ISSN journal
00222844
Volume
39
Issue
4
Year of publication
1994
Pages
431 - 433
Database
ISI
SICI code
0022-2844(1994)39:4<431:AORDAW>2.0.ZU;2-L
Abstract
The genus Poecilia has been widely studied as a model for the evolutio n of sex chromosomes. In the course of molecular studies on population genetic structure and sexual selection in the Trinidad guppy, we exam ined our preparations for male-linked, repetitive DNA polymorphisms. W e have net obtained any evidence of male-specific polymorphisms, in co ntrast to an earlier study. Our results have significant implications for theories on the evolution of sex chromosomes.