Intrapopulation genome size variation in D. melanogaster reflects life history variation and plasticity.

ABSTRACT: We determined female genome sizes using flow cytometry for 211 Drosophila melanogaster sequenced inbred strains from the Drosophila Genetic Reference Panel, and found significant conspecific and intrapopulation variation in genome size. We also compared several life history traits for 25 lines with large and 25 lines with small genomes in three thermal environments, and found that genome size as well as genome size by temperature interactions significantly correlated with survival to pupation and adulthood, time to pupation, female pupal mass, and female eclosion rates. Genome size accounted for up to 23% of the variation in developmental phenotypes, but the contribution of genome size to variation in life history traits was plastic and varied according to the thermal environment. Expressi

SUBMITTER: Ellis LL 

PROVIDER: S-EPMC4109859 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature