Cytogenetics of Bisexual/Unisexual Species of Poecilia I. C-Bands, Ag-nor Polymorphisms, and Sex Chromosomes in Three Populations of Poecilia Latipinna

Luciana Sola; P. J. Monaco; E. M. Rasch

doi:10.1159/000132917

Cytogenetics of Bisexual/Unisexual Species of Poecilia I. C-Bands, Ag-nor Polymorphisms, and Sex Chromosomes in Three Populations of Poecilia Latipinna

Luciana Sola
, P. J. Monaco
, E. M. Rasch

Department of Medical Education

Università degli Studi di Roma La Sapienza
East Tennessee State University

Research output: Contribution to journal › Article › peer-review

Abstract

Three populations of the North American cyprin-odont fish Poecilia latipinna, considered to be one of the progenitor species of the gynogenetic unisexual P.formosa. were analyzed by C-banding and Ag-staining. C-bands were found to be polymorphic, and Ag-staining showed a high degree of variability in both the number and location of nucleolus organizer regions. The C-banding and Ag-staining patterns allow, to a certain extern. to distinguish individual specimens from each of these populations. Females of the three populations were found to have a het-eromorphic chromosome pair, which was frequently identifiable with Giemsa staining and always after C-banding. This pair could be interpreted as sex chromosomes of the ZWZZ type.

Original language	American English
Journal	Cytogenetic and Genome Research
Volume	53
DOIs	https://doi.org/10.1159/000132917
State	Published - Jan 1 1990

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title = "Cytogenetics of Bisexual/Unisexual Species of Poecilia I. C-Bands, Ag-nor Polymorphisms, and Sex Chromosomes in Three Populations of Poecilia Latipinna",

abstract = " Three populations of the North American cyprin-odont fish Poecilia latipinna, considered to be one of the progenitor species of the gynogenetic unisexual P.formosa. were analyzed by C-banding and Ag-staining. C-bands were found to be polymorphic, and Ag-staining showed a high degree of variability in both the number and location of nucleolus organizer regions. The C-banding and Ag-staining patterns allow, to a certain extern. to distinguish individual specimens from each of these populations. Females of the three populations were found to have a het-eromorphic chromosome pair, which was frequently identifiable with Giemsa staining and always after C-banding. This pair could be interpreted as sex chromosomes of the ZWZZ type.",

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T1 - Cytogenetics of Bisexual/Unisexual Species of Poecilia I. C-Bands, Ag-nor Polymorphisms, and Sex Chromosomes in Three Populations of Poecilia Latipinna

AU - Sola, Luciana

AU - Monaco, P. J.

AU - Rasch, E. M.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - Three populations of the North American cyprin-odont fish Poecilia latipinna, considered to be one of the progenitor species of the gynogenetic unisexual P.formosa. were analyzed by C-banding and Ag-staining. C-bands were found to be polymorphic, and Ag-staining showed a high degree of variability in both the number and location of nucleolus organizer regions. The C-banding and Ag-staining patterns allow, to a certain extern. to distinguish individual specimens from each of these populations. Females of the three populations were found to have a het-eromorphic chromosome pair, which was frequently identifiable with Giemsa staining and always after C-banding. This pair could be interpreted as sex chromosomes of the ZWZZ type.

AB - Three populations of the North American cyprin-odont fish Poecilia latipinna, considered to be one of the progenitor species of the gynogenetic unisexual P.formosa. were analyzed by C-banding and Ag-staining. C-bands were found to be polymorphic, and Ag-staining showed a high degree of variability in both the number and location of nucleolus organizer regions. The C-banding and Ag-staining patterns allow, to a certain extern. to distinguish individual specimens from each of these populations. Females of the three populations were found to have a het-eromorphic chromosome pair, which was frequently identifiable with Giemsa staining and always after C-banding. This pair could be interpreted as sex chromosomes of the ZWZZ type.

UR - https://dc.etsu.edu/etsu-works/13818

UR - https://doi.org/10.1159/000132917

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DO - 10.1159/000132917

M3 - Article

VL - 53

JO - Cytogenetic and Genome Research

JF - Cytogenetic and Genome Research

ER -

Cytogenetics of Bisexual/Unisexual Species of Poecilia I. C-Bands, Ag-nor Polymorphisms, and Sex Chromosomes in Three Populations of Poecilia Latipinna

Abstract

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