Genomic introgression in laboratory evolved hybrid races, Cytorace 1 and Fissioncytorace-1 of Nasuta-albomicans complex (NAC) of Drosophila (Insecta, Diptera) as revealed by RAPD and ISSR markers

Thongatabam, B. and Ramachandra, N. B. (2012) Genomic introgression in laboratory evolved hybrid races, Cytorace 1 and Fissioncytorace-1 of Nasuta-albomicans complex (NAC) of Drosophila (Insecta, Diptera) as revealed by RAPD and ISSR markers. Italian Journal of Zoology, 79 (4). pp. 520-529. ISSN 1748-5851

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Official URL: https://doi.org/10.1080/11250003.2012.696151

Abstract

Nasuta-albomicans complex (NAC) of Drosophila is an artificial hybrid zone comprising of Drosophila nasuta nasuta, Drosophila nasuta albomicans and 16 Cytoraces, which are the evolutionary products of a long range hybridization experiment conducted in the laboratory environment. Occurrence of centric fission in the X3 chromosome of Cytorace 1 led to the derivation of Fissioncytorace-1. Molecular techniques have emerged as powerful and valuable tools for detection and exploitation of genetic polymorphism. In the present study, Cytorace 1 and Fissioncytorace-1 were subjected to Random Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeats (ISSR) analyses to determine the introgression of D. n. nasuta and D. n. albomicans genomes. It was found that Cytorace 1 and Fissioncytorace-1 exhibit similarities in RAPD and ISSR profiles although different combinations of genomic regions could have favoured Fissioncytorace-1, for better morphophenotypes and fitness, when compared to Cytorace 1, which has existed for over 15 years from the time of its evolution in the laboratory environment.

Item Type: Article
Uncontrolled Keywords: Nasuta-albomicans complex, hybridization, Fissioncytorace-1, RAPD, ISSR
Subjects: B Life Science > Zoology
Divisions: Department of > Zoology
Depositing User: C Swapna Library Assistant
Date Deposited: 12 Jul 2019 05:37
Last Modified: 12 Jul 2019 05:37
URI: http://eprints.uni-mysore.ac.in/id/eprint/5108

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