Coastal dunefields maintain pre-Holocene genetic structure in a rocky shore red alga

© 2021 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 57(2021), 5 vom: 26. Okt., Seite 1542-1553
1. Verfasser: Mmonwa, Kolobe Lucas (VerfasserIn)
Weitere Verfasser: Barker, Nigel Paul, McQuaid, Christopher David, Teske, Peter Rodja
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Rhodophyta coastal dunefields dispersal gametophytes genetic patterns habitat discontinuity phylogeographic patterns tetraspores DNA, Mitochondrial
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520 |a Most intertidal algae have limited dispersal potential, and areas that lack hard substratum suitable for attachment are thus expected to isolate regional populations from each other. Here, we used nuclear and mitochondrial genetic data to compare genetic structure in two co-distributed intertidal red algae with different dispersal potential along the South African coastline. Gelidium pristoides is divided into a south-eastern and a south-western evolutionary lineage separated by extensive, continuous sandy shoreline habitat adjacent to coastal dunefields. In contrast, Hypnea spicifera is genetically homogeneous throughout its range. In G. pristoides, the genetic breaks are associated with contemporary coastal dunefields. The age of the divergence event suggests that this may reflect the effect of older dispersal barriers, and that genetic structure was subsequently maintained by the formation of contemporary coastal dunefields 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Rhodophyta 
650 4 |a coastal dunefields 
650 4 |a dispersal 
650 4 |a gametophytes 
650 4 |a genetic patterns 
650 4 |a habitat discontinuity 
650 4 |a phylogeographic patterns 
650 4 |a tetraspores 
650 7 |a DNA, Mitochondrial  |2 NLM 
700 1 |a Barker, Nigel Paul  |e verfasserin  |4 aut 
700 1 |a McQuaid, Christopher David  |e verfasserin  |4 aut 
700 1 |a Teske, Peter Rodja  |e verfasserin  |4 aut 
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