Cytogenetics of Bisexual/Unisexual Species of Poecilia. IV. Sex Chromosomes, Sex Chromatin Composition and Ag-nor Polymorphisms in Poecilia Iatipinna: A Population From Mexico

Luciana Sola; Simona Bressanello; Ellen M. Rasch; Paul J. Monaco

doi:10.1038/hdy.1993.9

Cytogenetics of Bisexual/Unisexual Species of Poecilia. IV. Sex Chromosomes, Sex Chromatin Composition and Ag-nor Polymorphisms in Poecilia Iatipinna: A Population From Mexico

Luciana Sola
, Simona Bressanello
, Ellen M. Rasch
, Paul J. Monaco

Università degli Studi di Roma La Sapienza

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

Abstract

Cytogenetic analysis using C-banding, silver staining and fluorescent staining was carried out on a population sample of Poecilia Iatipinna derived from Tampico, Mexico, to verify the presence of sex chromosomes in individuals from the southern areas of this species range and to investigate the extent of C-band and Ag-NOR polymorphisms. Females were found to have W heteromorphic chromosomes, with large amounts of heterochromatin-rich in AT nucleotide sequences. C-banding corresponded to the pattern proposed as typical for the genus. Specimens share one of the Ag- NOR locations previously described in populations from the U.S.A. and show additional ones as well.

Original language	American English
Journal	Heredity
Volume	70
DOIs	https://doi.org/10.1038/hdy.1993.9
State	Published - Jan 1 1993
Externally published	Yes

Keywords

NOR polymorphism
fish
poecilia Iatipinna
poeciliidae
sex chromatin
sex chromosomes

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title = "Cytogenetics of Bisexual/Unisexual Species of Poecilia. IV. Sex Chromosomes, Sex Chromatin Composition and Ag-nor Polymorphisms in Poecilia Iatipinna: A Population From Mexico",

abstract = " Cytogenetic analysis using C-banding, silver staining and fluorescent staining was carried out on a population sample of Poecilia Iatipinna derived from Tampico, Mexico, to verify the presence of sex chromosomes in individuals from the southern areas of this species range and to investigate the extent of C-band and Ag-NOR polymorphisms. Females were found to have W heteromorphic chromosomes, with large amounts of heterochromatin-rich in AT nucleotide sequences. C-banding corresponded to the pattern proposed as typical for the genus. Specimens share one of the Ag- NOR locations previously described in populations from the U.S.A. and show additional ones as well.",

keywords = "NOR polymorphism, fish, poecilia Iatipinna, poeciliidae, sex chromatin, sex chromosomes",

author = "Luciana Sola and Simona Bressanello and Rasch, \{Ellen M.\} and Monaco, \{Paul J.\}",

year = "1993",

month = jan,

day = "1",

doi = "10.1038/hdy.1993.9",

language = "American English",

volume = "70",

journal = "Heredity",

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TY - JOUR

T1 - Cytogenetics of Bisexual/Unisexual Species of Poecilia. IV. Sex Chromosomes, Sex Chromatin Composition and Ag-nor Polymorphisms in Poecilia Iatipinna: A Population From Mexico

AU - Sola, Luciana

AU - Bressanello, Simona

AU - Rasch, Ellen M.

AU - Monaco, Paul J.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - Cytogenetic analysis using C-banding, silver staining and fluorescent staining was carried out on a population sample of Poecilia Iatipinna derived from Tampico, Mexico, to verify the presence of sex chromosomes in individuals from the southern areas of this species range and to investigate the extent of C-band and Ag-NOR polymorphisms. Females were found to have W heteromorphic chromosomes, with large amounts of heterochromatin-rich in AT nucleotide sequences. C-banding corresponded to the pattern proposed as typical for the genus. Specimens share one of the Ag- NOR locations previously described in populations from the U.S.A. and show additional ones as well.

AB - Cytogenetic analysis using C-banding, silver staining and fluorescent staining was carried out on a population sample of Poecilia Iatipinna derived from Tampico, Mexico, to verify the presence of sex chromosomes in individuals from the southern areas of this species range and to investigate the extent of C-band and Ag-NOR polymorphisms. Females were found to have W heteromorphic chromosomes, with large amounts of heterochromatin-rich in AT nucleotide sequences. C-banding corresponded to the pattern proposed as typical for the genus. Specimens share one of the Ag- NOR locations previously described in populations from the U.S.A. and show additional ones as well.

KW - NOR polymorphism

KW - fish

KW - poecilia Iatipinna

KW - poeciliidae

KW - sex chromatin

KW - sex chromosomes

UR - https://dc.etsu.edu/etsu-works/11775

UR - https://doi.org/10.1038/hdy.1993.9

U2 - 10.1038/hdy.1993.9

DO - 10.1038/hdy.1993.9

M3 - Article

VL - 70

JO - Heredity

JF - Heredity

ER -

Cytogenetics of Bisexual/Unisexual Species of Poecilia. IV. Sex Chromosomes, Sex Chromatin Composition and Ag-nor Polymorphisms in Poecilia Iatipinna: A Population From Mexico

Abstract

Keywords

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