Supplementary Figure 4: Probing the level of selection.
From: Transmission of mitochondrial mutations and action of purifying selection in Drosophila melanogaster
(A) Abundance of the temperature-sensitive genome affected neither mtDNA copy number nor fecundity. Individual mothers were born and raised at 29 °C. (B) Selection does not increase as the number of germline stem cell divisions increases in the mother. The abundance of mt:CoIT300I is shown for three heteroplasmic mothers (mt:CoIT300I/mt:ND2del1 females raised at 29 °C) and the eggs she laid over successive days. A reduction in abundance is seen between the mother and eggs, and there is no significant change in the degree of this reduction over time.