DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/33 |
Resumo: | Geonoma schottiana is an underbrush palm which is found in high densities in tropical forests. This species is known for having an asynchronous fruit producing pattern, over all seasons of the year, thus being an important food source for frugivores. This work aims to determine the diversity and spatial genetic structure of two natural populations, referred to as MC I and MC II, of which 60 individuals were sampled, in Poço Bonito Biological Reserve, Lavras, Minas Gerais state. Results of 10 polymorphic isozyme loci indicated a high genetic diversity for the species (Ĥe = 0.428 and Ĥo = 0.570), with an mean number of alleles per locus of 2.0. Estimates of Cockerham’s coancestry coefficients indicated an absence of intrapopulation (f = -0.343) and interpopulation inbreeding (F = -0.161), suggesting that on average populations are not endogamous. A high genetic divergence was found between populations (p θ ˆ = 13.5%), in comparison to most tropical species (<5%). Consequently, the estimated historical gene fl ow was low (Nˆ m = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments. Key words: Allozymes, spatial genetic structure, genetic conservation.><5%). Consequently, the estimated historical gene fl ow was low (Nm = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments. |
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DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATIONAllozymesspatial genetic structuregenetic conservationGeonoma schottiana is an underbrush palm which is found in high densities in tropical forests. This species is known for having an asynchronous fruit producing pattern, over all seasons of the year, thus being an important food source for frugivores. This work aims to determine the diversity and spatial genetic structure of two natural populations, referred to as MC I and MC II, of which 60 individuals were sampled, in Poço Bonito Biological Reserve, Lavras, Minas Gerais state. Results of 10 polymorphic isozyme loci indicated a high genetic diversity for the species (Ĥe = 0.428 and Ĥo = 0.570), with an mean number of alleles per locus of 2.0. Estimates of Cockerham’s coancestry coefficients indicated an absence of intrapopulation (f = -0.343) and interpopulation inbreeding (F = -0.161), suggesting that on average populations are not endogamous. A high genetic divergence was found between populations (p θ ˆ = 13.5%), in comparison to most tropical species (<5%). Consequently, the estimated historical gene fl ow was low (Nˆ m = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments. Key words: Allozymes, spatial genetic structure, genetic conservation.><5%). Consequently, the estimated historical gene fl ow was low (Nm = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments.CERNECERNE2015-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/33CERNE; Vol. 17 No. 2 (2011); 195-201CERNE; v. 17 n. 2 (2011); 195-2012317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/33/27Copyright (c) 2015 Mirian de Sousa Silva, Fábio de Almeida Vieira, Dulcinéia Carvalhoinfo:eu-repo/semantics/openAccessSilva, Mirian de SousaVieira, Fábio de AlmeidaCarvalho, Dulcinéia2015-05-04T15:11:43Zoai:cerne.ufla.br:article/33Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:53:26.953101Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
title |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
spellingShingle |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION Silva, Mirian de Sousa Allozymes spatial genetic structure genetic conservation |
title_short |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
title_full |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
title_fullStr |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
title_full_unstemmed |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
title_sort |
DIVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Geonoma schottiana Mart (Arecaceae): IMPLICATIONS FOR CONSERVATION |
author |
Silva, Mirian de Sousa |
author_facet |
Silva, Mirian de Sousa Vieira, Fábio de Almeida Carvalho, Dulcinéia |
author_role |
author |
author2 |
Vieira, Fábio de Almeida Carvalho, Dulcinéia |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Mirian de Sousa Vieira, Fábio de Almeida Carvalho, Dulcinéia |
dc.subject.por.fl_str_mv |
Allozymes spatial genetic structure genetic conservation |
topic |
Allozymes spatial genetic structure genetic conservation |
description |
Geonoma schottiana is an underbrush palm which is found in high densities in tropical forests. This species is known for having an asynchronous fruit producing pattern, over all seasons of the year, thus being an important food source for frugivores. This work aims to determine the diversity and spatial genetic structure of two natural populations, referred to as MC I and MC II, of which 60 individuals were sampled, in Poço Bonito Biological Reserve, Lavras, Minas Gerais state. Results of 10 polymorphic isozyme loci indicated a high genetic diversity for the species (Ĥe = 0.428 and Ĥo = 0.570), with an mean number of alleles per locus of 2.0. Estimates of Cockerham’s coancestry coefficients indicated an absence of intrapopulation (f = -0.343) and interpopulation inbreeding (F = -0.161), suggesting that on average populations are not endogamous. A high genetic divergence was found between populations (p θ ˆ = 13.5%), in comparison to most tropical species (<5%). Consequently, the estimated historical gene fl ow was low (Nˆ m = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments. Key words: Allozymes, spatial genetic structure, genetic conservation.><5%). Consequently, the estimated historical gene fl ow was low (Nm = 0.40). The analysis of spatial distribution of G. schottiana genotypes in MCI revealed a random distribution of genotypes. The high genetic diversity indices found suggest that the populations in question favor in situ genetic conservation, consequently favoring the conservation of riparian environments. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/33 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/33 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/33/27 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Mirian de Sousa Silva, Fábio de Almeida Vieira, Dulcinéia Carvalho info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Mirian de Sousa Silva, Fábio de Almeida Vieira, Dulcinéia Carvalho |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 17 No. 2 (2011); 195-201 CERNE; v. 17 n. 2 (2011); 195-201 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874939105312768 |