A carregar...
Publicação
Studies of the species barrier between Drosophila subobscura and D. madeirensis I. The genetics of male hybrid sterility
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 4.16 MB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
The genetics of hybrid male sterility between Drosophila subobscura and D. madeirensis were
studied with the help of 20 markers in backcross males. A major effect resides in the sex chromo somes: backcross males with the X and Y of different origin (mad X-sub Y or sub X—mad Y) have
very small and empty testes. In compatible combinations testes are of normal size but males may be
sterile or fertile depending on the genetic constitution of their autosomes. Six autosomal factors
affecting hybrid male fertility could be postulated. This estimation is based on the assumption of the
absence of interaction between viability and fertility. The presence and the mode of such interaction
may modify the number of sterility factors.
Descrição
Palavras-chave
Drosophila Hybrid sterility Sex chromosomes Species barrier . Faculdade de Ciências da Vida
Contexto Educativo
Citação
Khadem, M., & Krimbas, C. B. (1991). Studies of the species barrier between Drosophila subobscura and D. madeirensis I. The genetics of male hybrid sterility. Heredity, 67(2), 157-165. https://doi.org/10.1038/hdy.1991.75
Editora
Springer Nature