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Interracial hybridization in Drosophila ananassae

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Abstract

Crosses were made between strains of Drosophila ananassae, homozygous for the ST or AL gene sequences in the second chromosome, and originating from geographically distant localities in India. All interracial crosses were maintained separately in culture bottles for ten generations. After ten generations it was observed that the inversion heterozygotes were heterotic. Thus it was found that interracial hybridization does not lead to breakdown of heterosis. Therefore, it has been suggested that localised coadaptation is absent in the natural populations of Indian D. ananassae. Thus D. ananassae does not show the pattern of some other species.

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  1. Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221005, Varanasi, India

    B. N. Singh

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  1. B. N. Singh
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Singh, B.N. Interracial hybridization in Drosophila ananassae. Genetica 57, 139–142 (1981). https://doi.org/10.1007/BF00131239

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  • DOI: https://doi.org/10.1007/BF00131239

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