Reproductive isolation in the saltans group of Drosophila. I. The saltans subgroup |
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Authors: | Hermione Elly Melara de Campos Bicudo |
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Institution: | (1) Departamento de Genética, Faculdade de Filosofia, Ciências e Letras de Sâo José do Rio Preto, Sâo Paulo, Brasil |
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Abstract: | In order to study isolation within the salians subgroup, pair mating crosses involving its 7 species were performed. The results of testing different interspecific combinations varied from complete isolation at the insemination level to the production of fertile hybrids. Some isolation indices are proposed: Ii (isolation index at the insemination level), Fi (isolation index at the fertilization level), Ti (total isolation index), and Ai (average isolation index). A schema of the biological relationships on the basis of the isolation degree is also presented for the 7 species of the subgroup.Part of this study was included in the thesis submitted for the PH.D. degree at the University of São Paulo and was performed during the tenure of a fellowship supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo. |
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