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Phylogeographical patterns are governed by geography in endemic polymorphic snail Indrella ampulla

Sudeshna Chakraborthy, Maitreya Sil, Abhisikta Roy, H N Poorna Bhat, Anwesha Saha, Surya Narayanan, Aravind N.A.

Biological Journal of the Linnean Society | November 21, 2023

Genetic diversity within a species can be shaped by abiotic factors, such as climate and geography. We aimed to ascertain the relative importance of these two abiotic factors to Indrella ampulla, a monotypic snail species from the Western Ghats, India, that has three colour morphs with some overlapping distributions. We also wanted to investigate whether these colour morphs represent divergent lineages or incipient species. We sequenced one nuclear and two mitochondrial genes from 32 individuals of I. ampulla.