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Population Structure and Historical Demography of the Oriental River Prawn (Macrobrachium nipponense) in Taiwan.

Chen PC, Shih CH, Chu TJ, Wang D, Lee YC, Tzeng TD - PLoS ONE (2015)

Bottom Line: All FST values among nine populations were significantly different except the one between Jhonggang River Estuary (JGE, west-central Taiwan) and Kaoping River Estuary (KPE, southern Taiwan).The dispersal route of this species might be from China to west-central and west-southern Taiwan, and then the part individuals belonging to lineage A and B dispersed southerly and northerly, respectively.And then part individuals in west-central Taiwan fell back to and stay at estuaries as the sea level rose about 18,000 years ago.

View Article: PubMed Central - PubMed

Affiliation: Institute of Fisheries Science, College of Life Science, National Taiwan University, Taipei, 106, Taiwan.

ABSTRACT
The oriental river prawn (Macrobrachium nipponense) is a non-obligatory amphidromous prawn, and it has a wide distribution covering almost the entire Taiwan. Mitochondrial DNA fragment sequences of the cytochrome oxidase subunit I (COI) and 16S rRNA were combined and used to elucidate the population structure and historical demography of oriental river prawn in Taiwan. A total of 202 individuals from six reservoirs and three estuaries were separately collected. Nucleotide diversity (π) of all populations was 0.01217, with values ranging from 0.00188 (Shihmen Reservoir, SMR, northern Taiwan) to 0.01425 (Mingte Reservoir, MTR, west-central Taiwan). All 76 haplotypes were divided into 2 lineages: lineage A included individuals from all sampling areas except SMR, and lineage B included specimens from all sampling locations except Chengching Lake Reservoir (CLR) and Liyu Lake Reservoir (LLR). All FST values among nine populations were significantly different except the one between Jhonggang River Estuary (JGE, west-central Taiwan) and Kaoping River Estuary (KPE, southern Taiwan). UPGMA tree of nine populations showed two main groups: the first group included the SMR and Tamsui River Estuary (TSE) (both located northern Taiwan), and the second one included the other seven populations (west-central, southern and eastern Taiwan). Demographic analyses implied a population expansion occurred during the recent history of the species. The dispersal route of this species might be from China to west-central and west-southern Taiwan, and then the part individuals belonging to lineage A and B dispersed southerly and northerly, respectively. And then part individuals in west-central Taiwan fell back to and stay at estuaries as the sea level rose about 18,000 years ago.

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UPGMA tree showing relationships among the 9 sampling sites.
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pone.0145927.g004: UPGMA tree showing relationships among the 9 sampling sites.

Mentions: All FST values among nine populations were significant except the one between KPE and JGE (Table 2). The UPGMA tree of these nine sampling areas was computed after allowing a 1000 replicate bootstrap test using the same program (Fig 4). These nine populations could be divided into two main groups: the first group included the SMR and TSE, and the second one included the other seven populations. The second group may be further divided into four subgroups; the first subgroup included the CLR and LLR populations; the second subgroup included the YLR; the third subgroup included KPE and JGE; the fourth subgroup included MTR and TWR.


Population Structure and Historical Demography of the Oriental River Prawn (Macrobrachium nipponense) in Taiwan.

Chen PC, Shih CH, Chu TJ, Wang D, Lee YC, Tzeng TD - PLoS ONE (2015)

UPGMA tree showing relationships among the 9 sampling sites.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4696665&req=5

pone.0145927.g004: UPGMA tree showing relationships among the 9 sampling sites.
Mentions: All FST values among nine populations were significant except the one between KPE and JGE (Table 2). The UPGMA tree of these nine sampling areas was computed after allowing a 1000 replicate bootstrap test using the same program (Fig 4). These nine populations could be divided into two main groups: the first group included the SMR and TSE, and the second one included the other seven populations. The second group may be further divided into four subgroups; the first subgroup included the CLR and LLR populations; the second subgroup included the YLR; the third subgroup included KPE and JGE; the fourth subgroup included MTR and TWR.

Bottom Line: All FST values among nine populations were significantly different except the one between Jhonggang River Estuary (JGE, west-central Taiwan) and Kaoping River Estuary (KPE, southern Taiwan).The dispersal route of this species might be from China to west-central and west-southern Taiwan, and then the part individuals belonging to lineage A and B dispersed southerly and northerly, respectively.And then part individuals in west-central Taiwan fell back to and stay at estuaries as the sea level rose about 18,000 years ago.

View Article: PubMed Central - PubMed

Affiliation: Institute of Fisheries Science, College of Life Science, National Taiwan University, Taipei, 106, Taiwan.

ABSTRACT
The oriental river prawn (Macrobrachium nipponense) is a non-obligatory amphidromous prawn, and it has a wide distribution covering almost the entire Taiwan. Mitochondrial DNA fragment sequences of the cytochrome oxidase subunit I (COI) and 16S rRNA were combined and used to elucidate the population structure and historical demography of oriental river prawn in Taiwan. A total of 202 individuals from six reservoirs and three estuaries were separately collected. Nucleotide diversity (π) of all populations was 0.01217, with values ranging from 0.00188 (Shihmen Reservoir, SMR, northern Taiwan) to 0.01425 (Mingte Reservoir, MTR, west-central Taiwan). All 76 haplotypes were divided into 2 lineages: lineage A included individuals from all sampling areas except SMR, and lineage B included specimens from all sampling locations except Chengching Lake Reservoir (CLR) and Liyu Lake Reservoir (LLR). All FST values among nine populations were significantly different except the one between Jhonggang River Estuary (JGE, west-central Taiwan) and Kaoping River Estuary (KPE, southern Taiwan). UPGMA tree of nine populations showed two main groups: the first group included the SMR and Tamsui River Estuary (TSE) (both located northern Taiwan), and the second one included the other seven populations (west-central, southern and eastern Taiwan). Demographic analyses implied a population expansion occurred during the recent history of the species. The dispersal route of this species might be from China to west-central and west-southern Taiwan, and then the part individuals belonging to lineage A and B dispersed southerly and northerly, respectively. And then part individuals in west-central Taiwan fell back to and stay at estuaries as the sea level rose about 18,000 years ago.

Show MeSH