Does genome size increase with water depth in marine fishes?

Aline Medeiros, Bráulio Santos & Ricardo Betancur-R
A growing body of research suggests that genome size in animals can be affected by ecological factors. Half a century ago, Ebeling et al. (1971; EEA71) proposed that genome size increases with depth in some teleost fish groups and discussed a number of biological mechanisms that may explain this pattern (e.g., passive accumulation, adaptive acclimation). Using phylogenetic comparative approaches, we revisit this hypothesis based on genome size and ecological data from up to 708 marine...

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  • Federal University of Paraíba
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  • University of Oklahoma
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