In:
Botanica Marina, Walter de Gruyter GmbH, Vol. 58, No. 3 ( 2015-6-1), p. 175-187
Abstract:
The present study compares genetic structure from the plastid rbc L, mitochondrial cox 1, and nuclear internal transcribed spacer (ITS) sequences among 13 populations of Gracilaria salicornia and its red algal parasite, G. babae , in Malaysia. Owing to the unique biology of the red algal parasite, identical phylogeographies were inferred from the rbc L and cox 1 sequences in both G . babae and its host, G . salicornia . Despite the low genetic variation, rbc L and cox 1 showed a concordant phylogeographic split that largely corresponds to Peninsular Malaysia and East Malaysia, except for a sample from East Malaysia that was consistently grouped with samples from the peninsula. On the other hand, G . salicornia was separated from G. babae in the midpoint-rooted phylogeny inferred from ITS data despite the failure to retrieve the two taxa in reciprocal monophyly. Gracilaria salicornia was less diverse and lacked apparent geographic structure. In contrast, the ITS data revealed considerable genetic diversity and fine-scale genetic structuring in G . babae within Malaysian waters, probably as a result of adaptation to the local host population.
Type of Medium:
Online Resource
ISSN:
1437-4323
,
0006-8055
DOI:
10.1515/bot-2014-0071
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2015
detail.hit.zdb_id:
1475447-2
detail.hit.zdb_id:
1197-6
SSG:
12
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