Small-scale genetic structuring in a tropical cave snail and admixture with its above-ground sister species†

2012/02/24 by Menno Schilthuizen, ELISE M. J. RUTTEN, Martin Haase · 3 citations
Agricultural and Biological Sciences · Earth and Planetary Sciences · Environmental Science · #Aquatic Invertebrate Ecology and Behavior #Mollusks and Parasites Studies #Subterranean biodiversity and taxonomy

paper · pdf · doi:10.1111/j.1095-8312.2011.01835.x

openalex publication_date 2012/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/23

Abstract

We analyse the phylogeographical structure in the cave snail Georissa filiasaulae Haase & Schilthuizen, 2007 (Gastropoda: Hydrocenidae) and its above-ground sister species G. saulae Morphometric and 16S mitochondrial DNA data for some 220 individuals reveal strong morphological differentiation, despite ongoing unidirectional gene flow from the epigean into the hypogean environment, strong, small-scale genetic structuring within the cave and underground dispersal between caves that were previously thought to be isolated. We discuss these results -which constitute the first phylogeographical analysis of a terrestrial cave snail -in the light of speciation in cave organisms and across ecotones in general.

Citations

• A new Georissa (Gastropoda: Neritopsina: Hydrocenidae) from a limestone cave in Malaysian Borneo
• TCS: a computer program to estimate gene genealogies

Cited by

• A molecular and conchological dissection of the “scaly” Georissa of Malaysian Borneo (Gastropoda, Neritimorpha, Hydrocenidae)
• Apuntes laboralistas sobre lo colectivo y lo individual en la Ley Concursal
• Georissa filiasaulae [wikipedia]
• Georissa saulae [wikipedia]

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