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A sex-linked enzyme in a reptile – association with a recent centric fusion in the common lizard

Published online by Cambridge University Press:  14 April 2009

Jean-Michel Goux  and
Georges Pasteur
Jean-Michel Goux
Affiliation:
Laboratoire de Génétique des Populations, U.A. 693 du CNRS, Université Paris-VII, 2 place Jussieu, 75221 Paris 05
Georges Pasteur
Affiliation:
Laboratoire de Génétique Ecologique, Ecole Pratique des Hautes Etudes, Place Eugène-Bataillon, 34060 Montpellier, France
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In a series of Lacerta vivipara samples from southern France's central mountains, the distribution of genotypes at the mannose phosphate isomerase (MPI) locus has only been accountable as due to sex linkage in female heterogamety, provided the W chromosome carries only one of the two observed alleles in the populations sampled. This is in perfect accordance with cytogenetical data. Reasons are presented that seem to limit acceptable hypotheses for the recent origin of this sex-linked polymorphism to three: a founder effect, a point mutation in Z chromosomes after crossover suppression, or hitch-hiking with the translocation involved.

Type
Research Article
Information
Genetics Research , Volume 48 , Issue 1 , August 1986 , pp. 21 - 25
Copyright
Copyright © Cambridge University Press 1986

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