Intraspecific polymorphism of sex chromosome heterochromatin in two species of the Anopheles gambiae complex.

Chromosoma ·Vol. 76 ·No. 1 ·1980-00-00 ·Pages 57-64

Bonaccorsi S, Santini G, Gatti M, Pimpinelli S, Colluzzi M

Abstract

The Hoechst 33258 banding pattern of the mitotic chromosomes of several laboratory and natural populations of the sibling species A. gambiae and A. arabiensis has been analyzed. A clear intraspecific polymorphism of sex chromosome heterochromatin has been observed. Nevertheless in each species heterochromatic variations fall within a characteristic species-specific pattern. Moreover, while laboratory polulations tend to be monomorphic for a given heterchromatic variant, natural populations exhibit a high degree of intrapopulation polymorphism. The possible role of sex chromosome heterochromatin in controlling fertility and mating behaviour of Anopheles mosquitoes is discussed.

MeSH Terms

Animals Anopheles/genetics Chromosome Banding Chromosomes/ultrastructure Genetic Variation Heterochromatin/genetics Polymorphism, Genetic Sex Chromosomes/ultrastructure Species Specificity

Chemicals

Heterochromatin

Authors & Affiliations

5 authors, click to expand affiliations / ORCID

Bonaccorsi S

Santini G

Gatti M

Pimpinelli S

Colluzzi M

References (11)

11 references, click to expand

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Article Info

Journal

Chromosoma

Abbr.

Chromosoma

ISSN

0009-5915

DOI

10.1007/BF00292226

Published

1980-00-00

Pages

57-64

Language

English

Region

Austria

NLM ID

2985138R

Subset

External Links

PubMed source DOI: 10.1007/BF00292226 View journal details

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Intraspecific polymorphism of sex chromosome heterochromatin in two species of the Anopheles gambiae complex.

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