Data from: Ecology has contrasting effects on genetic variation within species versus rates of molecular evolution across species in water beetles

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关键词：

CO1;Haliplidae;Genetic Variation;PGLS;Dytiscidae;water beetles;Recent;rate of evolution;Noteridae;Gyrinidae

DOI：

doi:10.5061/dryad.926pq

摘要：

Comparative analysis is a potentially powerful approach to study the effects of ecological traits on genetic variation and rate of evolution across species. However, the lack of suitable datasets means that comparative studies of correlates of genetic traits across an entire clade have been rare. Here, we use a large DNA-barcode dataset (5062 sequences) of water beetles to test the effects of species ecology and geographical distribution on genetic variation within species and rates of molecular evolution across species. We investigated species traits predicted to influence their genetic characteristics, such as surrogate measures of species population size, latitudinal distribution and habitat types, taking phylogeny into account. Genetic variation of cytochrome oxidase I in water beetles was positively correlated with occupancy (numbers of sites of species presence) and negatively with latitude, whereas substitution rates across species depended mainly on habitat types, and running water specialists had the highest rate. These results are consistent with theoretical predictions from nearly-neutral theories of evolution, and suggest that the comparative analysis using large databases can give insights into correlates of genetic variation and molecular evolution.

Data from: Untangling the influence of phylogeny, soil and climate on leaf element concentrations in a biodiversity hotspot

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关键词：

Stoichiometry;plant-soil interactions;Primulina;Didymocarpoideae;calcicole;Adaptation;Evolution;Biodiversity hotspot;special soils;Gesneriaceae;PGLS;Holocene;phylogenetic signal

DOI：

doi:10.5061/dryad.863c0

摘要：

and evaluated soil properties for 422 populations of 177 Didymocarpoideae species. The phylogenetic signals present in the leaf element concentrations and in soil

Data from: Elevation and latitude interact to drive life-history variation in precocial birds: a comparative analysis using Galliformes

负责人：

Balasubramaniam, Priya

关键词：

PGLS Altitude Clutch size Egg mass Elevation Fecundity vs. offspring quality Life history tradeoff Phylogenetic comparative methods Precocial Interspecific variation

DOI：

doi:10.5061/dryad.38s8g

摘要：

and intrinsic factors (development mode). We performed a comparative analysis controlling for body size and phylogenetic relationships on a global data set of 135