Drosophila Females Undergo Genome Expansion after Interspecific Hybridization.

ABSTRACT: Genome size (or C-value) can present a wide range of values among eukaryotes. This variation has been attributed to differences in the amplification and deletion of different noncoding repetitive sequences, particularly transposable elements (TEs). TEs can be activated under different stress conditions such as interspecific hybridization events, as described for several species of animals and plants. These massive transposition episodes can lead to considerable genome expansions that could ultimately be involved in hybrid speciation processes. Here, we describe the effects of hybridization and introgression on genome size of Drosophila hybrids. We measured the genome size of two close Drosophila species, Drosophila buzzatii and Drosophila koepferae, their F1 offspring and the offspring fro

SUBMITTER: Romero-Soriano V 

PROVIDER: S-EPMC4824032 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature