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Studies on the superiority of double inversion heterozygotes in a laboratory population of drosophila nasuta



Studies on the superiority of double inversion heterozygotes in a laboratory population of drosophila nasuta



Caryologia 39(3-4): 359-364



In the natural populations of Drosophila nasuta, two independent gene arrangements, III-2 and III-35, in the third chromosome are very common and occur non-randomly. The double heterozygote combination is known to be superior to comparison to double homozygotes. A test has been carried out whether the double heterozygotes are also superior in the laboratory population kept at different temperatures. The present result demonstrates the superiority of double heterozygotes in the laboratory population. Further, it has been suggested that the low percentage of the double homozygotes is due to less viability of their carriers.

Accession: 006522204

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DOI: 10.1080/00087114.1986.10797798

Download PDF Full Text: Studies on the superiority of double inversion heterozygotes in a laboratory population of drosophila nasuta



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