Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil
| ISSN: |
1573-5117
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| Keywords: |
Portunidae ; population genetics ; gene flow ; allozymes ; estuarine retention
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
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| Notes: |
Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798296829003038720 |
|---|---|
| autor | Weber, L. I. Levy, J. A. |
| autorsonst | Weber, L. I. Levy, J. A. |
| book_url | http://dx.doi.org/10.1023/A:1003992630229 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM194292746 |
| issn | 1573-5117 |
| journal_name | Hydrobiologia |
| materialart | 1 |
| notes | Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries. |
| package_name | Springer |
| publikationsjahr_anzeige | 2000 |
| publikationsjahr_facette | 2000 |
| publikationsjahr_intervall | 7999:2000-2004 |
| publikationsjahr_sort | 2000 |
| publisher | Springer |
| reference | 420 (2000), S. 203-210 |
| schlagwort | Portunidae population genetics gene flow allozymes estuarine retention |
| search_space | articles |
| shingle_author_1 | Weber, L. I. Levy, J. A. |
| shingle_author_2 | Weber, L. I. Levy, J. A. |
| shingle_author_3 | Weber, L. I. Levy, J. A. |
| shingle_author_4 | Weber, L. I. Levy, J. A. |
| shingle_catch_all_1 | Weber, L. I. Levy, J. A. Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil Portunidae population genetics gene flow allozymes estuarine retention Portunidae population genetics gene flow allozymes estuarine retention Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries. 1573-5117 15735117 Springer |
| shingle_catch_all_2 | Weber, L. I. Levy, J. A. Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil Portunidae population genetics gene flow allozymes estuarine retention Portunidae population genetics gene flow allozymes estuarine retention Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries. 1573-5117 15735117 Springer |
| shingle_catch_all_3 | Weber, L. I. Levy, J. A. Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil Portunidae population genetics gene flow allozymes estuarine retention Portunidae population genetics gene flow allozymes estuarine retention Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries. 1573-5117 15735117 Springer |
| shingle_catch_all_4 | Weber, L. I. Levy, J. A. Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil Portunidae population genetics gene flow allozymes estuarine retention Portunidae population genetics gene flow allozymes estuarine retention Abstract The population genetic structure of the swimming crab Callinectes danae (Crustacea, Portunidae) was studied by allozyme electrophoresis along the southern coast of Brazil (Santa Catarina and Rio Grande do Sul States). The biology of C. danae is poorly known, but some studies suggest that this species depends on estuaries for reproduction and for completing its life cycle, using them as recruitment sites and nursery grounds. If estuarine retention is an important process acting in favour of the recruitment of local populations, we should expect restriction of gene flow among populations inhabiting different estuaries. Therefore, our aim was to establish whether gene flow between populations of C. danaefrom different estuaries was restricted. Samples were collected in four estuaries: São Francisco do Sul, Laguna (Santa Catarina), Patos Lagoon and Chuí Stream (Rio Grande do Sul). Eleven loci were resolved. Contingency table tests (χ2 and G) showed significant differences (P≤0.05) between pair-wise subpopulation comparisons. The estimated F ST was θ=0.065±0.019, suggesting a moderate structuring of C. danae populations. No relationship was found for the number of migrants between pairs of subpopulations and the geographic distance separating them (P= 0.292; r 2= 0.269). Nevertheless, UPGMA analysis clustered together those estuaries separated by less than 250 km. Low adult migration, the requirement of estuaries as reproductive areas, recruitment sites and nursery grounds for juveniles, together with larval and post-larval retention processes, are discussed in the context of their importance in preventing panmixia among subpopulations inhabiting different estuaries. 1573-5117 15735117 Springer |
| shingle_title_1 | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| shingle_title_2 | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| shingle_title_3 | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| shingle_title_4 | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T09:58:18.333Z |
| titel | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| titel_suche | Genetic population structure of the swimming crab Callinectes danae (Crustacea: Decapoda) in southern Brazil |
| topic | W |
| uid | nat_lic_papers_NLM194292746 |