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Singh R, Singh BN. Intra- and interspecific sexual isolation in two sibling species of Drosophila: D. ananassae and D. pallidosa. ETHOL ECOL EVOL 2020. [DOI: 10.1080/03949370.2020.1777210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Roshni Singh
- Genetics Laboratory, Institute of Science, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Bashisth N. Singh
- Genetics Laboratory, Institute of Science, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
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Is there ethological isolation among Drosophila melanogaster strains reared for more than 35 generations on different food? ARCH BIOL SCI 2009. [DOI: 10.2298/abs0901105p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Ethological isolation among three strains of D. melanogaster reared for more than 35 generations on different food (standard cornmeal-agar-yeast medium, banana, and tomato) was tested in a series of multiple choice tests. Long-term maintenance on different substrates did not contribute to sexual isolation among three 'nutritional strains', as degrees of ethological isolation (Malogolowkin-Cohen's isolation indices) were not statistically significant. Males and females reared on different nutritional resources were equally successful in matings, i.e., significant differences in the number of copulations achieved by males and females from various lines were not observed.
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