Genetic diversity and structure of the portuguese pear (Pyrus communis L.) germplasm
Main Author: | |
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Publication Date: | 2019 |
Other Authors: | , , , , , |
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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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 |
status_str |
publishedVersion |
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 instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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