Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/6376 |
Resumo: | Eighteen populations of the endangered aromatic and medicinal plant Mentha cervina (Lamiaceae) were sampled across its natural range, in the western half of the Iberian Peninsula, and inter-simple sequence repeats (ISSRs) markers were used to assess genetic diversity and population structure. M. cervina populations exhibited a relatively low genetic diversity (percentage of polymorphic loci PPB ¼ 14.2–58.3%, Nei’s genetic diversity He ¼ 0.135–0.205, Shannon’s information index I ¼ 0.08 0.33). However, the genetic diversity at species level was relatively high (PPB ¼ 98.3%; He ¼ 0.325; I ¼ 0.23). The results of the analysis of molecular variance indicated very structured populations, with 50% of the variance within populations, 44% among populations and 6% between regions defined by hydrographic basins, in line with the gene differentiation coefficient (GST ¼ 0.532). A Mantel test did not find significant correlation between genetic and geographic distance matrices (r ¼ 0.064), indicating that isolation by distance is not shaping the present genetic structure. The levels and patterns of genetic diversity in M. cervina populations were assumed to result largely from a combination of evolutionary history and its unique biological traits, such as breeding system, low capacity of dispersion, small effective size and habitat fragmentation. The high genetic differentiation among populations indicates the necessity of conserving the maximum possible number of populations. The results also provide information to select sites for ex situ conservation. Optimal harvesting strategies, cultivation and tissue culture should also be developed as soon as possible to guarantee sustainable use of the species under study. |
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Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservationMentha cervinagenetic diversitypopulation structureconservation geneticsendemic speciesISSREighteen populations of the endangered aromatic and medicinal plant Mentha cervina (Lamiaceae) were sampled across its natural range, in the western half of the Iberian Peninsula, and inter-simple sequence repeats (ISSRs) markers were used to assess genetic diversity and population structure. M. cervina populations exhibited a relatively low genetic diversity (percentage of polymorphic loci PPB ¼ 14.2–58.3%, Nei’s genetic diversity He ¼ 0.135–0.205, Shannon’s information index I ¼ 0.08 0.33). However, the genetic diversity at species level was relatively high (PPB ¼ 98.3%; He ¼ 0.325; I ¼ 0.23). The results of the analysis of molecular variance indicated very structured populations, with 50% of the variance within populations, 44% among populations and 6% between regions defined by hydrographic basins, in line with the gene differentiation coefficient (GST ¼ 0.532). A Mantel test did not find significant correlation between genetic and geographic distance matrices (r ¼ 0.064), indicating that isolation by distance is not shaping the present genetic structure. The levels and patterns of genetic diversity in M. cervina populations were assumed to result largely from a combination of evolutionary history and its unique biological traits, such as breeding system, low capacity of dispersion, small effective size and habitat fragmentation. The high genetic differentiation among populations indicates the necessity of conserving the maximum possible number of populations. The results also provide information to select sites for ex situ conservation. Optimal harvesting strategies, cultivation and tissue culture should also be developed as soon as possible to guarantee sustainable use of the species under study.ElsevierRepositório da Universidade de LisboaRodrigues, LeandraBerg, Cássio Van denPóvoa, OrlandaMonteiro, Ana2014-01-21T16:11:45Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/6376eng"Biochemical Systematics and Ecology". ISSN 0305-1978. 50 (2013) 51-610305-1978info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:37:14Zoai:www.repository.utl.pt:10400.5/6376Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:53:46.109715Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
title |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
spellingShingle |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation Rodrigues, Leandra Mentha cervina genetic diversity population structure conservation genetics endemic species ISSR |
title_short |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
title_full |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
title_fullStr |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
title_full_unstemmed |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
title_sort |
Low genetic diversity and significant structuring in the endangered Mentha cervina populations and its implications for conservation |
author |
Rodrigues, Leandra |
author_facet |
Rodrigues, Leandra Berg, Cássio Van den Póvoa, Orlanda Monteiro, Ana |
author_role |
author |
author2 |
Berg, Cássio Van den Póvoa, Orlanda Monteiro, Ana |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Rodrigues, Leandra Berg, Cássio Van den Póvoa, Orlanda Monteiro, Ana |
dc.subject.por.fl_str_mv |
Mentha cervina genetic diversity population structure conservation genetics endemic species ISSR |
topic |
Mentha cervina genetic diversity population structure conservation genetics endemic species ISSR |
description |
Eighteen populations of the endangered aromatic and medicinal plant Mentha cervina (Lamiaceae) were sampled across its natural range, in the western half of the Iberian Peninsula, and inter-simple sequence repeats (ISSRs) markers were used to assess genetic diversity and population structure. M. cervina populations exhibited a relatively low genetic diversity (percentage of polymorphic loci PPB ¼ 14.2–58.3%, Nei’s genetic diversity He ¼ 0.135–0.205, Shannon’s information index I ¼ 0.08 0.33). However, the genetic diversity at species level was relatively high (PPB ¼ 98.3%; He ¼ 0.325; I ¼ 0.23). The results of the analysis of molecular variance indicated very structured populations, with 50% of the variance within populations, 44% among populations and 6% between regions defined by hydrographic basins, in line with the gene differentiation coefficient (GST ¼ 0.532). A Mantel test did not find significant correlation between genetic and geographic distance matrices (r ¼ 0.064), indicating that isolation by distance is not shaping the present genetic structure. The levels and patterns of genetic diversity in M. cervina populations were assumed to result largely from a combination of evolutionary history and its unique biological traits, such as breeding system, low capacity of dispersion, small effective size and habitat fragmentation. The high genetic differentiation among populations indicates the necessity of conserving the maximum possible number of populations. The results also provide information to select sites for ex situ conservation. Optimal harvesting strategies, cultivation and tissue culture should also be developed as soon as possible to guarantee sustainable use of the species under study. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z 2014-01-21T16:11:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.5/6376 |
url |
http://hdl.handle.net/10400.5/6376 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Biochemical Systematics and Ecology". ISSN 0305-1978. 50 (2013) 51-61 0305-1978 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799131013114232832 |