Divergence of Drosophila melanogaster repeatomes in response to a sharp microclimate contrast in Evolution Canyon, Israel Journal Article
| Authors: | Kim, Y. B.; Oh, J. H.; McIver, L. J.; Rashkovetsky, E.; Michalak, K.; Garner, H. R.; Kang, L.; Nevo, E.; Korol, A. B.; Michalak, P. |
| Article Title: | Divergence of Drosophila melanogaster repeatomes in response to a sharp microclimate contrast in Evolution Canyon, Israel |
| Abstract: | Repeat sequences, especially mobile elements, make up large portions of most eukaryotic genomes and provide enormous, albeit commonly underappreciated, evolutionary potential. We analyzed repeatomes of Drosophila melanogaster that have been diverging in response to a microclimate contrast in Evolution Canyon (Mount Carmel, Israel), a natural evolutionary laboratory with two abutting slopes at an average distance of only 200 m, which pose a constant ecological challenge to their local biotas. Flies inhabiting the colder and more humid north-facing slope carried about 6% more transposable elements than those from the hot and dry south-facing slope, in parallel to a suite of other genetic and phenotypic differences between the two populations. Nearly 50% of all mobile element insertions were slope unique, with many of them disrupting coding sequences of genes critical for cognition, olfaction, and thermotolerance, consistent with the observed patterns of thermotolerance differences and assortative mating. |
| Keywords: | gene sequence; nonhuman; genetic variability; dna; molecular evolution; gene disruption; cognition; israel; dna structure; drosophila melanogaster; phenotypic variation; transposon; heat tolerance; microsatellite; genome sequencing; microclimate; dna transposition; female; priority journal; article; climate change; adaptive evolution; smelling; incipient speciation; assortative mating; biota; evolutionary rate; insect genome; population differentiation; repeatome |
| Journal Title: | Proceedings of the National Academy of Sciences of the United States of America |
| Volume: | 111 |
| Issue: | 29 |
| ISSN: | 0027-8424 |
| Publisher: | National Academy of Sciences |
| Date Published: | 2014-07-22 |
| Start Page: | 10630 |
| End Page: | 10635 |
| Language: | English |
| DOI: | 10.1073/pnas.1410372111 |
| PROVIDER: | scopus |
| PMCID: | PMC4115526 |
| PUBMED: | 25006263 |
| DOI/URL: | |
| Notes: | Export Date: 2 September 2014 -- CODEN: PNASA -- Source: Scopus |
