Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture
The genetic diversity and population structure of Chrysichthys nigrodigitatus were evaluated using a 443 base pair fragment of the mitochondrial control region. Among the eight populations collected comprising 129 individuals, a total of 89 polymorphic sites defined 57 distinct haplotypes. The mean...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Sciendo
2016-06-01
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| Series: | Archives of Polish Fisheries |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/aopf-2016-0010 |
| _version_ | 1819120287806914560 |
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| author | Nwafili Sylvanus A. Gao Tian-Xiang |
| author_facet | Nwafili Sylvanus A. Gao Tian-Xiang |
| author_sort | Nwafili Sylvanus A. |
| collection | DOAJ |
| description | The genetic diversity and population structure of Chrysichthys nigrodigitatus were evaluated using a 443 base pair fragment of the mitochondrial control region. Among the eight populations collected comprising 129 individuals, a total of 89 polymorphic sites defined 57 distinct haplotypes. The mean haplotype diversity and nucleotide diversity of the eight populations were 0.966±0.006 and 0.0359±0.004, respectively. Analysis of molecular variance showed significant genetic differentiation among the eight populations (FST =0.34; P < 0.01). The present results revealed that C. nigrodigitatus populations had a high level of genetic diversity and distinct population structures. We report the existence of two monophyletic matrilineal lineages with mean genetic distance of 10.5% between them. Non-significant negative Tajima’s D and Fu’s Fs for more than half the populations suggests that the wild populations of C. nigrodigitatus underwent a recent population expansion, although a weak one since the late Pleistocene. |
| first_indexed | 2024-12-22T06:18:16Z |
| format | Article |
| id | doaj.art-39bdeb4c48a843c58c20955185f4ed18 |
| institution | Directory Open Access Journal |
| issn | 2083-6139 |
| language | English |
| last_indexed | 2024-12-22T06:18:16Z |
| publishDate | 2016-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Archives of Polish Fisheries |
| spelling | doaj.art-39bdeb4c48a843c58c20955185f4ed182022-12-21T18:36:01ZengSciendoArchives of Polish Fisheries2083-61392016-06-01242859710.1515/aopf-2016-0010aopf-2016-0010Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquacultureNwafili Sylvanus A.0Gao Tian-Xiang1Department of Fisheries, Faculty of Agriculture, University of Port Harcourt, NigeriaLaboratory of Mariculture, Ocean University of China, 266003 Qingdao, PR ChinaThe genetic diversity and population structure of Chrysichthys nigrodigitatus were evaluated using a 443 base pair fragment of the mitochondrial control region. Among the eight populations collected comprising 129 individuals, a total of 89 polymorphic sites defined 57 distinct haplotypes. The mean haplotype diversity and nucleotide diversity of the eight populations were 0.966±0.006 and 0.0359±0.004, respectively. Analysis of molecular variance showed significant genetic differentiation among the eight populations (FST =0.34; P < 0.01). The present results revealed that C. nigrodigitatus populations had a high level of genetic diversity and distinct population structures. We report the existence of two monophyletic matrilineal lineages with mean genetic distance of 10.5% between them. Non-significant negative Tajima’s D and Fu’s Fs for more than half the populations suggests that the wild populations of C. nigrodigitatus underwent a recent population expansion, although a weak one since the late Pleistocene.https://doi.org/10.1515/aopf-2016-0010chrysichthys nigrodigitatusmtdna control regionniger deltaniger riverlagos lagoonshiroro lake |
| spellingShingle | Nwafili Sylvanus A. Gao Tian-Xiang Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture Archives of Polish Fisheries chrysichthys nigrodigitatus mtdna control region niger delta niger river lagos lagoon shiroro lake |
| title | Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture |
| title_full | Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture |
| title_fullStr | Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture |
| title_full_unstemmed | Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture |
| title_short | Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture |
| title_sort | genetic diversity in the mtdna control region and population structure of chrysichthys nigrodigitatus from selected nigerian rivers implications for conservation and aquaculture |
| topic | chrysichthys nigrodigitatus mtdna control region niger delta niger river lagos lagoon shiroro lake |
| url | https://doi.org/10.1515/aopf-2016-0010 |
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