Introgressive hybridization and evolution of a novel protein phenotype:glue protein profiles in thenasuta-albomicans complex of Drosophila

Aruna, S. and Ranganath, H. A. (2006) Introgressive hybridization and evolution of a novel protein phenotype:glue protein profiles in thenasuta-albomicans complex of Drosophila. Journal of Genetics, 85 (1). pp. 25-30. ISSN 0973-7731

Text (Full Text) Introgressive hybridization and evolution.pdf - Published Version Restricted to Registered users only Download (148kB) | Request a copy

Abstract

Glue proteins are tissue-specific proteins synthesized by larval salivary gland cells ofDrosophila. InDrosophila nasuta nasuta andD. n. albomicans of thenasuta subgroup, the genes that encode the major glue protein fractions are X-linked. In the present study, these X-linked markers have been employed to trace the pattern of introgression ofD. n. nasuta andD. n. albomicans genomes with respect to the major glue protein fractions in their interracial hybrids, called cytoraces. These cytoraces have inherited the chromosomes of both parents and have been maintained in the laboratory for over 400--550 generations. The analysis has revealed that cytoraces withD. n. albomicans X chromosome show eitherD. n. nasuta pattern or a completely novel pattern of glue protein fractions. Further, quantitative analysis also shows lack of correlation between the chromosomal pattern of inheritance and overall quantity of the major glue protein fractions in the cytoraces. Thus, in cytoraces the parental chromosomes are not just differentially represented but there is evidence for introgression even at the gene level.

Item Type:	Article
Subjects:	B Life Science > Zoology
Divisions:	Department of > Zoology
Depositing User:	LA manjunath user
Date Deposited:	26 Aug 2019 06:01
Last Modified:	26 Aug 2019 06:01
URI:	http://eprints.uni-mysore.ac.in/id/eprint/7010

Actions (login required)

View Item