Is the genetic variability of elite rice in southern Brazil really disappearing?
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Crop Breeding and Applied Biotechnology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200203 |
Resumo: | Abstract There is a worldwide concern about a possible narrowing of the genetic base of most crops, as e.g. that of rice (Oryza sativa L.), as a result of the modern breeding practices. Thus, the purpose of this study was to investigate this phenomenon in the germplasm of elite paddy rice in southern Brazil, including frequently used accessions in crosses. The panel consisted of 91 accessions. Data of morphological traits, SNP markers and mineral content of husked and polished grain were analyzed by hierarchical clustering and principal component analysis. The SNP markers and hierarchical clustering proved most appropriate to assess the genetic variability. A narrowing of the genetic base of rice was confirmed, although a certain level of genetic variability was still found in the germplasm of elite paddy rice in south Brazilian rice, particularly for grain mineral content. |
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Crop Breeding and Applied Biotechnology |
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Is the genetic variability of elite rice in southern Brazil really disappearing?Genetic resourcesgenetic variabilitygenotypingphenotypingOryza sativa LAbstract There is a worldwide concern about a possible narrowing of the genetic base of most crops, as e.g. that of rice (Oryza sativa L.), as a result of the modern breeding practices. Thus, the purpose of this study was to investigate this phenomenon in the germplasm of elite paddy rice in southern Brazil, including frequently used accessions in crosses. The panel consisted of 91 accessions. Data of morphological traits, SNP markers and mineral content of husked and polished grain were analyzed by hierarchical clustering and principal component analysis. The SNP markers and hierarchical clustering proved most appropriate to assess the genetic variability. A narrowing of the genetic base of rice was confirmed, although a certain level of genetic variability was still found in the germplasm of elite paddy rice in south Brazilian rice, particularly for grain mineral content.Crop Breeding and Applied Biotechnology2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200203Crop Breeding and Applied Biotechnology v.20 n.2 2020reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332020v20n2a30info:eu-repo/semantics/openAccessBusanello,CarlosVenske,EduardoStafen,Cássia FernandaPedrolo,Ana MarinaLuz,Viviane Kopp daPedron,TatianaPaniz,Fernanda PolloBatista,Bruno LemosMagalhães Júnior,Ariano Martins deOliveira,Antonio Costa dePegoraro,Camilaeng2020-07-15T00:00:00Zoai:scielo:S1984-70332020000200203Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2020-07-15T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse |
dc.title.none.fl_str_mv |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
title |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
spellingShingle |
Is the genetic variability of elite rice in southern Brazil really disappearing? Busanello,Carlos Genetic resources genetic variability genotyping phenotyping Oryza sativa L |
title_short |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
title_full |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
title_fullStr |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
title_full_unstemmed |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
title_sort |
Is the genetic variability of elite rice in southern Brazil really disappearing? |
author |
Busanello,Carlos |
author_facet |
Busanello,Carlos Venske,Eduardo Stafen,Cássia Fernanda Pedrolo,Ana Marina Luz,Viviane Kopp da Pedron,Tatiana Paniz,Fernanda Pollo Batista,Bruno Lemos Magalhães Júnior,Ariano Martins de Oliveira,Antonio Costa de Pegoraro,Camila |
author_role |
author |
author2 |
Venske,Eduardo Stafen,Cássia Fernanda Pedrolo,Ana Marina Luz,Viviane Kopp da Pedron,Tatiana Paniz,Fernanda Pollo Batista,Bruno Lemos Magalhães Júnior,Ariano Martins de Oliveira,Antonio Costa de Pegoraro,Camila |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Busanello,Carlos Venske,Eduardo Stafen,Cássia Fernanda Pedrolo,Ana Marina Luz,Viviane Kopp da Pedron,Tatiana Paniz,Fernanda Pollo Batista,Bruno Lemos Magalhães Júnior,Ariano Martins de Oliveira,Antonio Costa de Pegoraro,Camila |
dc.subject.por.fl_str_mv |
Genetic resources genetic variability genotyping phenotyping Oryza sativa L |
topic |
Genetic resources genetic variability genotyping phenotyping Oryza sativa L |
description |
Abstract There is a worldwide concern about a possible narrowing of the genetic base of most crops, as e.g. that of rice (Oryza sativa L.), as a result of the modern breeding practices. Thus, the purpose of this study was to investigate this phenomenon in the germplasm of elite paddy rice in southern Brazil, including frequently used accessions in crosses. The panel consisted of 91 accessions. Data of morphological traits, SNP markers and mineral content of husked and polished grain were analyzed by hierarchical clustering and principal component analysis. The SNP markers and hierarchical clustering proved most appropriate to assess the genetic variability. A narrowing of the genetic base of rice was confirmed, although a certain level of genetic variability was still found in the germplasm of elite paddy rice in south Brazilian rice, particularly for grain mineral content. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200203 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200203 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1984-70332020v20n2a30 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Crop Breeding and Applied Biotechnology |
publisher.none.fl_str_mv |
Crop Breeding and Applied Biotechnology |
dc.source.none.fl_str_mv |
Crop Breeding and Applied Biotechnology v.20 n.2 2020 reponame:Crop Breeding and Applied Biotechnology instname:Sociedade Brasileira de Melhoramento de Plantas instacron:CBAB |
instname_str |
Sociedade Brasileira de Melhoramento de Plantas |
instacron_str |
CBAB |
institution |
CBAB |
reponame_str |
Crop Breeding and Applied Biotechnology |
collection |
Crop Breeding and Applied Biotechnology |
repository.name.fl_str_mv |
Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas |
repository.mail.fl_str_mv |
cbabjournal@gmail.com||cbab@ufv.br |
_version_ |
1754209188057186304 |