Greater Mating Success of Middle-Aged Females of Drosophila ananassa

Prathibha, M. and Krishna, M. S. (2010) Greater Mating Success of Middle-Aged Females of Drosophila ananassa. Zoological Studies -Taipei, 49 (6). pp. 806-815. ISSN 1021-5506

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Madegowda Prathibha and Mysore Siddaiah Krishna (2010) Greater mating success of middle-aged females of Drosophila ananassae. Zoological Studies 49(6): 806-815. Out bred population of Drosophila ananassae established from progenies of 150 isofemale lines collected at Mysore, India was used to study how female age influences mating success, mating latency, courtship activities, copulation duration, fecundity, ovariole number and female wing length. It was noted that middle-aged females had significantly greater mating success, and mated faster, and males showed significantly greater intensities of courtship activities, i.e. tapping, scissoring, vibrating, licking toward middle-aged females compared to younger and older females, and copulated longer than with younger and older females. It was also noted that middle-aged females had significantly greater fecundity and ovariole numbers than younger and older females. However, no significant variation in female wing length was found among females of different age classes. Therefore, we hypothesized that in D. ananassae, middle aged females were more eager to mate than were younger or older females. Thus, these studies on D. ananassae suggest that middle-age females had greater mating success and fitness than younger and older females

Item Type: Article
Subjects: B Life Science > Zoology
Divisions: Department of > Zoology
Depositing User: LA manjunath user
Date Deposited: 05 Jul 2019 10:52
Last Modified: 11 Dec 2019 07:30

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