Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants

Detalhes bibliográficos
Autor(a) principal: Krycki,Karine Cristina
Data de Publicação: 2016
Outros Autores: Simioni,Carine, Dall'Agnol,Miguel
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=S1984-70332016000400282
Resumo: Abstract This study evaluated the mode of reproduction, the meiotic behavior and the pollen viability of three tetraploid plants (2n=4x=40) originated from somatic chromosome duplication of Paspalum notatum plants. The plant WKS 3 changed the mode of reproduction after duplication and became apomictic. The plants WKS 63 and WKS 92 confirmed sexual mode of reproduction identical to that of the original genotype. The analyzed plants presented meiotic abnormalities related to tetraploidy, and the chromosome pairing were variable, but it did not hinder the meiotic products, which were characterized by regular tetrads and satisfactory pollen fertility, ranging from 88.7 to 95.7%. Results show that all plants are meiotically stable and that they can be used in intraspecific crosses in the breeding program of Paspalum notatum.
id CBAB-1_be8c64dfffd2919e3dcf7a5fa8c2b182
oai_identifier_str oai:scielo:S1984-70332016000400282
network_acronym_str CBAB-1
network_name_str Crop Breeding and Applied Biotechnology
repository_id_str
spelling Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plantsChromosome duplicationcytogenetic analysisgenetic breedingintraspecific crossesAbstract This study evaluated the mode of reproduction, the meiotic behavior and the pollen viability of three tetraploid plants (2n=4x=40) originated from somatic chromosome duplication of Paspalum notatum plants. The plant WKS 3 changed the mode of reproduction after duplication and became apomictic. The plants WKS 63 and WKS 92 confirmed sexual mode of reproduction identical to that of the original genotype. The analyzed plants presented meiotic abnormalities related to tetraploidy, and the chromosome pairing were variable, but it did not hinder the meiotic products, which were characterized by regular tetrads and satisfactory pollen fertility, ranging from 88.7 to 95.7%. Results show that all plants are meiotically stable and that they can be used in intraspecific crosses in the breeding program of Paspalum notatum.Crop Breeding and Applied Biotechnology2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332016000400282Crop Breeding and Applied Biotechnology v.16 n.4 2016reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332016v16n4a43info:eu-repo/semantics/openAccessKrycki,Karine CristinaSimioni,CarineDall'Agnol,Migueleng2016-12-19T00:00:00Zoai:scielo:S1984-70332016000400282Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2016-12-19T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
title Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
spellingShingle Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
Krycki,Karine Cristina
Chromosome duplication
cytogenetic analysis
genetic breeding
intraspecific crosses
title_short Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
title_full Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
title_fullStr Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
title_full_unstemmed Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
title_sort Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
author Krycki,Karine Cristina
author_facet Krycki,Karine Cristina
Simioni,Carine
Dall'Agnol,Miguel
author_role author
author2 Simioni,Carine
Dall'Agnol,Miguel
author2_role author
author
dc.contributor.author.fl_str_mv Krycki,Karine Cristina
Simioni,Carine
Dall'Agnol,Miguel
dc.subject.por.fl_str_mv Chromosome duplication
cytogenetic analysis
genetic breeding
intraspecific crosses
topic Chromosome duplication
cytogenetic analysis
genetic breeding
intraspecific crosses
description Abstract This study evaluated the mode of reproduction, the meiotic behavior and the pollen viability of three tetraploid plants (2n=4x=40) originated from somatic chromosome duplication of Paspalum notatum plants. The plant WKS 3 changed the mode of reproduction after duplication and became apomictic. The plants WKS 63 and WKS 92 confirmed sexual mode of reproduction identical to that of the original genotype. The analyzed plants presented meiotic abnormalities related to tetraploidy, and the chromosome pairing were variable, but it did not hinder the meiotic products, which were characterized by regular tetrads and satisfactory pollen fertility, ranging from 88.7 to 95.7%. Results show that all plants are meiotically stable and that they can be used in intraspecific crosses in the breeding program of Paspalum notatum.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-01
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=S1984-70332016000400282
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332016000400282
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332016v16n4a43
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.16 n.4 2016
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_ 1754209187153313792

Registros relacionados