A site specific increase in recombination in Drosophila ananassae

The e65 pi; bri ru stock of Drosophila ananassae produced an extremely high rate of recombination in males when made heterozygous with any one of the wild type stocks. We analyzed and characterized the genetic factors which caused this phenomenon. We show that the second chromosome of the e65 pi; br...

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Bibliographic Details
Published inGenes & Genetic Systems Vol. 75; no. 1; pp. 41 - 47
Main Authors Sato, H. (Tokyo Metropolitan Univ., Hachioji (Japan)), Goni, B, Matsuda, M, Tobari, Y.N
Format Journal Article
LanguageEnglish
Published Japan The Genetics Society of Japan 01.02.2000
Japan Science and Technology Agency
Subjects
Animals
BIOLOGICAL DIFFERENCES
Chromosome Mapping
DIFERENCIAS BIOLOGICAS
DIFFERENCE BIOLOGIQUE
DROSOPHILA
Drosophila - genetics
Drosophila ananassae
Enhancer Elements, Genetic
ESPECE
ESPECIES
Female
Heterozygote
Male
RECOMBINACION
RECOMBINAISON
RECOMBINATION
Recombination, Genetic
SPECIES
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Summary:The e65 pi; bri ru stock of Drosophila ananassae produced an extremely high rate of recombination in males when made heterozygous with any one of the wild type stocks. We analyzed and characterized the genetic factors which caused this phenomenon. We show that the second chromosome of the e65 pi; bri ru stock carries an enhancer of male recombination. The enhancer, En(2)-ep, is located between Om(2C) and Arc. The enhancement of meiotic recombination both in males and females was also observed at the specific region between Om(2C) and Arc on 2L. The magnitude of increased recombination was 30~40 fold in males and 13~30 fold in females. The relation between the hotspot of recombination in both sexes and the enhancer of male recombination is discussed.
Bibliography:2000006292
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ISSN:1341-7568
1880-5779
DOI:10.1266/ggs.75.41