Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm

Bibliographic Details
Main Author: Queiroz, Álvaro
Publication Date: 2019
Other Authors: Guimarães, Joana Bagoin, Sánchez, Claudia, Simões, Fernanda, Sousa, Rui Maia, Viegas, Wanda, Veloso, Maria Manuela
Format: Article
Language: eng
Source: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Download full: http://hdl.handle.net/10400.5/18570
Summary: A rich heritage of traditional pear varieties is kept in national Portuguese collections. Out of these varieties, “Rocha” dominates national pear production. Although a noticeable phenotypic variation among clones of this variety has been reported, little is known about its genetic variability, as to date molecular studies have been performed on a single “Rocha” clone. Eleven Simple Sequence Repeats (SSR) markers were used to assess the genetic diversity of 130 local cultivars, 80 of them being “Rocha” clones. The results allowed the di erentiation of 75 genotypes of which 29 are “Rocha”. Three synonyms groups and four homonymous groups of other local varieties were confirmed. A Bayesian model-based clustering approach identified two distinct clusters. Using flow cytometry, six cultivars were found to be triploids. These results show high genetic variability among “Rocha” clones. In conclusion, there is a need for di erent “Rocha” clones to be preserved to enable the correct selection of the multiplication material
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spelling Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasmpear genetic resourcesSSR markersidentificationdiferentiationclones discriminationA rich heritage of traditional pear varieties is kept in national Portuguese collections. Out of these varieties, “Rocha” dominates national pear production. Although a noticeable phenotypic variation among clones of this variety has been reported, little is known about its genetic variability, as to date molecular studies have been performed on a single “Rocha” clone. Eleven Simple Sequence Repeats (SSR) markers were used to assess the genetic diversity of 130 local cultivars, 80 of them being “Rocha” clones. The results allowed the di erentiation of 75 genotypes of which 29 are “Rocha”. Three synonyms groups and four homonymous groups of other local varieties were confirmed. A Bayesian model-based clustering approach identified two distinct clusters. Using flow cytometry, six cultivars were found to be triploids. These results show high genetic variability among “Rocha” clones. In conclusion, there is a need for di erent “Rocha” clones to be preserved to enable the correct selection of the multiplication materialMDPIRepositório da Universidade de LisboaQueiroz, ÁlvaroGuimarães, Joana BagoinSánchez, ClaudiaSimões, FernandaSousa, Rui MaiaViegas, WandaVeloso, Maria Manuela2019-11-04T11:54:36Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/18570engSustainability 2019, 11, 534010.3390/su11195340info: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:RCAAP2023-03-06T14:48:09Zoai:www.repository.utl.pt:10400.5/18570Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:03:35.159781Repositório 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 Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
title Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
spellingShingle Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
Queiroz, Álvaro
pear genetic resources
SSR markers
identification
diferentiation
clones discrimination
title_short Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
title_full Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
title_fullStr Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
title_full_unstemmed Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
title_sort Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
author Queiroz, Álvaro
author_facet Queiroz, Álvaro
Guimarães, Joana Bagoin
Sánchez, Claudia
Simões, Fernanda
Sousa, Rui Maia
Viegas, Wanda
Veloso, Maria Manuela
author_role author
author2 Guimarães, Joana Bagoin
Sánchez, Claudia
Simões, Fernanda
Sousa, Rui Maia
Viegas, Wanda
Veloso, Maria Manuela
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Queiroz, Álvaro
Guimarães, Joana Bagoin
Sánchez, Claudia
Simões, Fernanda
Sousa, Rui Maia
Viegas, Wanda
Veloso, Maria Manuela
dc.subject.por.fl_str_mv pear genetic resources
SSR markers
identification
diferentiation
clones discrimination
topic pear genetic resources
SSR markers
identification
diferentiation
clones discrimination
description A rich heritage of traditional pear varieties is kept in national Portuguese collections. Out of these varieties, “Rocha” dominates national pear production. Although a noticeable phenotypic variation among clones of this variety has been reported, little is known about its genetic variability, as to date molecular studies have been performed on a single “Rocha” clone. Eleven Simple Sequence Repeats (SSR) markers were used to assess the genetic diversity of 130 local cultivars, 80 of them being “Rocha” clones. The results allowed the di erentiation of 75 genotypes of which 29 are “Rocha”. Three synonyms groups and four homonymous groups of other local varieties were confirmed. A Bayesian model-based clustering approach identified two distinct clusters. Using flow cytometry, six cultivars were found to be triploids. These results show high genetic variability among “Rocha” clones. In conclusion, there is a need for di erent “Rocha” clones to be preserved to enable the correct selection of the multiplication material
publishDate 2019
dc.date.none.fl_str_mv 2019-11-04T11:54:36Z
2019
2019-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/18570
url http://hdl.handle.net/10400.5/18570
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sustainability 2019, 11, 5340
10.3390/su11195340
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 MDPI
publisher.none.fl_str_mv MDPI
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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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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