Publication Date:
2006-09-09
Description:
We describe reproductive isolation caused by a gene transposition. In certain Drosophila melanogaster-D. simulans hybrids, hybrid male sterility is caused by the lack of a single-copy gene essential for male fertility, JYAlpha. This gene is located on the fourth chromosome of D. melanogaster but on the third chromosome of D. simulans. Genomic and molecular analyses show that JYAlpha transposed to the third chromosome during the evolutionary history of the D. simulans lineage. Because of this transposition, a fraction of hybrids completely lack JYAlpha and are sterile, representing reproductive isolation without sequence evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Masly, John P -- Jones, Corbin D -- Noor, Mohamed A F -- Locke, John -- Orr, H Allen -- New York, N.Y. -- Science. 2006 Sep 8;313(5792):1448-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, Rochester, NY 14627, USA. msly@mail.rochester.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16960009" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Chromosome Mapping
;
Chromosomes/*genetics
;
Drosophila/enzymology/*genetics/physiology
;
Drosophila melanogaster/enzymology/*genetics/physiology
;
Evolution, Molecular
;
Female
;
Fertility/genetics
;
Gene Dosage
;
*Genes, Insect
;
*Hybridization, Genetic
;
Male
;
Mutation
;
*Recombination, Genetic
;
Reproduction/genetics
;
Sodium-Potassium-Exchanging ATPase/*genetics
;
Sperm Motility
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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