caa a22 4500 445844922 CHVBK 20180317145355.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10709-011-9582-0 doi (NATIONALLICENCE)springer-10.1007/s10709-011-9582-0 Origin of sexual isolation in Drosophila ananassae due to founder effects [Elektronische Daten] [Punita Nanda, Bashisth Singh] The origin of sexual isolation is the central event in the evolution of biological species and plays a key role in maintaining biological diversity. Three mass culture stocks of D. ananassae originating from different geographic localities showing no isolation with each other were subjected to different degrees of bottlenecks i.e. one pair, five pairs and ten pairs. These drift lines were passed through flush-crash cycle at every generation with same initial number of founders, and maintained for twenty-seven generations and then the pattern of matings was tested among these nine drift lines involving 36 crosses in total. In 23 of 36 crosses, the difference between homogamic and heterogamic matings was significant and isolation indices were significantly more than zero in one direction only providing evidence for asymmetrical sexual isolation. Further, when Bonferroni test for pair-wise analysis was employed, significant differences between homogamic and heterogamic matings were found in 25 crosses. These findings provide evidence for origin of sexual isolation by founder effects in D. ananassae. Springer Science+Business Media B.V., 2011 Asymmetrical sexual isolation nationallicence Drosophila ananassae nationallicence Founder effects nationallicence Models of asymmetry nationallicence Nanda Punita Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221005, Varanasi, Uttar Pradesh, India aut Singh Bashisth Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221005, Varanasi, Uttar Pradesh, India aut Genetica Springer Netherlands 139/6(2011-06-01), 779-787 0016-6707 139:6<779 2011 139 10709 https://doi.org/10.1007/s10709-011-9582-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9582-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nanda Punita Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221005, Varanasi, Uttar Pradesh, India aut NATIONALLICENCE 700 1- Singh Bashisth Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221005, Varanasi, Uttar Pradesh, India aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/6(2011-06-01), 779-787 0016-6707 139:6<779 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer