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Population genetic subdivision of seagrasses, Syringodium isoetifolium and Thalassia hemprichii, in the Indonesian Archipelago by Benjamin J. Wainwright; Irma S. Arlyza; Stephen A. Karl is a Earth and Planetary Sciences article available to read on EtoBox.

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## Abstract The population genetics of two seagrasses,__Syringodium isoetifolium__and__Thalassia hemprichii__were assessed throughout the Indonesian Archipelago. We genotyped 257 blades of__S__.__isoetifolium__at 15 microsatellite loci collected from 14 sampling sites and 406 blades of__T. hemprichii__at 17 microsatellite loci from 16 sampling sites. Once clones were removed, 165 individuals of__S__.__isoetifolium__and 389 of__T. hemprichii__were used in downstream analyses. Bayesian clustering methods revealed two genetically distinguishable clusters in each species, although the geographic boundaries of these clusters differed.__Syringodium isoetifolium__has a cluster that is located exclusively on the shallow Sunda Shelf and appears to follow the demarcation defined by Wallace’s line.__Thalassia hemprichii__, however, has a genetically distinguishable cluster located within the Banda Sea. The Banda Sea has unique physical oceanographic conditions, which may be driving the observed differentiation in__T. hemprichii__. We speculate that historical sea level changes exposing the Sunda Shelf, and the unique oceanographic conditions of the Banda Sea are contributing to the observed p

Who reads Population genetic subdivision of seagrasses, Syringodium isoetifolium and Thalassia hemprichii, in the Indonesian Archipelago?

Author

Benjamin J. Wainwright; Irma S. Arlyza; Stephen A. Karl

Publisher

Walter de Gruyter GmbH

Published

2018

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)