Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants
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Publication Date: | 2016 |
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Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFRGS |
Download full: | http://hdl.handle.net/10183/185885 |
Summary: | 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. |
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Krycki, Karine CristinaSimioni, CarineDall'Agnol, Miguel2018-12-05T02:43:57Z20161518-7853http://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:UFRGSTEXT001079277.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 de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar: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 |
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 |
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 |
status_str |
publishedVersion |
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 |
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application/pdf |
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reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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