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

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 p...

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Detalles Bibliográficos
Autores: Krycki, Karine Cristina, Simioni, Carine, Dall'Agnol, Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Brasil
Institución:Universidade Federal do Rio Grande do Sul (UFRGS)
Repositorio:Repositório Institucional da UFRGS
Idioma:inglés
OAI Identifier:oai:www.lume.ufrgs.br:10183/185885
Acceso en línea:http://hdl.handle.net/10183/185885
Access Level:acceso abierto
Palabra clave:Melhoramento vegetal
Planta forrageira
Pólen
Paspalum notatum
Grama-batatais
Chromosome duplication
Cytogenetic analysis
Genetic breeding
Intraspecific crosses
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spelling 2018-12-05T02:43:57Z20161518-7853http://hdl.handle.net/10183/185885001079277This 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.application/pdfengCrop Breeding and Applied Biotechnology. Viçosa, MG. Vol. 16, n.4 (out./dez. 2016), p. 282-288Melhoramento vegetalPlanta forrageiraPólenPaspalum notatumGrama-batataisChromosome duplicationCytogenetic analysisGenetic breedingIntraspecific crossesCytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plantsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSKrycki, Karine CristinaSimioni, CarineDall'Agnol, MiguelTEXT001079277.pdf.txt001079277.pdf.txtExtracted Texttext/plain25643http://www.lume.ufrgs.br/bitstream/10183/185885/2/001079277.pdf.txt8be14604fe6aaa3f46c6732a23156ee1MD52ORIGINAL001079277.pdfTexto completo (inglês)application/pdf643746http://www.lume.ufrgs.br/bitstream/10183/185885/1/001079277.pdf18d05d7953404fbfe5c2cc63e2f7d4d6MD5110183/1858852021-09-19 04:36:01.992911oai:www.lume.ufrgs.br:10183/185885Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2021-09-19T07:36:01Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.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
Melhoramento vegetal
Planta forrageira
Pólen
Paspalum notatum
Grama-batatais
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
dc.creator.none.fl_str_mv Krycki, Karine Cristina
Simioni, Carine
Dall'Agnol, Miguel
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.subject.por.fl_str_mv Melhoramento vegetal
Planta forrageira
Pólen
Paspalum notatum
Grama-batatais
topic Melhoramento vegetal
Planta forrageira
Pólen
Paspalum notatum
Grama-batatais
Chromosome duplication
Cytogenetic analysis
Genetic breeding
Intraspecific crosses
dc.subject.eng.fl_str_mv Chromosome duplication
Cytogenetic analysis
Genetic breeding
Intraspecific crosses
description 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.issued.fl_str_mv 2016
dc.date.accessioned.fl_str_mv 2018-12-05T02:43:57Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/185885
dc.identifier.issn.pt_BR.fl_str_mv 1518-7853
dc.identifier.nrb.pt_BR.fl_str_mv 001079277
identifier_str_mv 1518-7853
001079277
url http://hdl.handle.net/10183/185885
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Crop Breeding and Applied Biotechnology. Viçosa, MG. Vol. 16, n.4 (out./dez. 2016), p. 282-288
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.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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