Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement

Detalhes bibliográficos
Autor(a) principal: Silva,Emanuelli Narducci da
Data de Publicação: 2012
Outros Autores: Freitas Neto,Monique, Pereira,Telma N. S., Pereira,Messias G.
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=S1984-70332012000100007
Resumo: The purpose of this study was to evaluate the meiotic behavior and determine the meiotic index and pollen viability of representative plants of the wild species V. goudotiana, V. quercifolia and J. spinosa. Meiotic analysis confirmed that the species are diploid and have 18 chromosomes. Meiosis was partially normal, since some abnormalities, e.g, sticky and lagging chromosomes, precocious segregation, lack of synchrony, and disturbances in the spindle fibers were observed. These abnormalities resulted in post-meiotic products (monads, dyads, triads, and polyads) that probably contributed to the meiotic index of 85.7 % (V. goudotiana) to 95.9 % (J. spinosa); significant variation was observed in the species V. goudotiana. The pollen viability of 68.0 % (V. goudotiana) to 96.0 % (J. spinosa) was reasonably good in these wild species. Crossings in breeding programs involving V. goudotiana should therefore be carefully planned, since part of the gametes of this species is unviable.
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spelling Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvementVasconcellea goudotianaVasconcellea quercifoliaJacaratia spinosameiosismeiotic indexThe purpose of this study was to evaluate the meiotic behavior and determine the meiotic index and pollen viability of representative plants of the wild species V. goudotiana, V. quercifolia and J. spinosa. Meiotic analysis confirmed that the species are diploid and have 18 chromosomes. Meiosis was partially normal, since some abnormalities, e.g, sticky and lagging chromosomes, precocious segregation, lack of synchrony, and disturbances in the spindle fibers were observed. These abnormalities resulted in post-meiotic products (monads, dyads, triads, and polyads) that probably contributed to the meiotic index of 85.7 % (V. goudotiana) to 95.9 % (J. spinosa); significant variation was observed in the species V. goudotiana. The pollen viability of 68.0 % (V. goudotiana) to 96.0 % (J. spinosa) was reasonably good in these wild species. Crossings in breeding programs involving V. goudotiana should therefore be carefully planned, since part of the gametes of this species is unviable.Crop Breeding and Applied Biotechnology2012-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332012000100007Crop Breeding and Applied Biotechnology v.12 n.1 2012reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/S1984-70332012000100007info:eu-repo/semantics/openAccessSilva,Emanuelli Narducci daFreitas Neto,MoniquePereira,Telma N. S.Pereira,Messias G.eng2012-05-21T00:00:00Zoai:scielo:S1984-70332012000100007Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2012-05-21T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
title Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
spellingShingle Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
Silva,Emanuelli Narducci da
Vasconcellea goudotiana
Vasconcellea quercifolia
Jacaratia spinosa
meiosis
meiotic index
title_short Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
title_full Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
title_fullStr Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
title_full_unstemmed Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
title_sort Meiotic behavior of wild Caricaceae species potentially suitable for papaya improvement
author Silva,Emanuelli Narducci da
author_facet Silva,Emanuelli Narducci da
Freitas Neto,Monique
Pereira,Telma N. S.
Pereira,Messias G.
author_role author
author2 Freitas Neto,Monique
Pereira,Telma N. S.
Pereira,Messias G.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva,Emanuelli Narducci da
Freitas Neto,Monique
Pereira,Telma N. S.
Pereira,Messias G.
dc.subject.por.fl_str_mv Vasconcellea goudotiana
Vasconcellea quercifolia
Jacaratia spinosa
meiosis
meiotic index
topic Vasconcellea goudotiana
Vasconcellea quercifolia
Jacaratia spinosa
meiosis
meiotic index
description The purpose of this study was to evaluate the meiotic behavior and determine the meiotic index and pollen viability of representative plants of the wild species V. goudotiana, V. quercifolia and J. spinosa. Meiotic analysis confirmed that the species are diploid and have 18 chromosomes. Meiosis was partially normal, since some abnormalities, e.g, sticky and lagging chromosomes, precocious segregation, lack of synchrony, and disturbances in the spindle fibers were observed. These abnormalities resulted in post-meiotic products (monads, dyads, triads, and polyads) that probably contributed to the meiotic index of 85.7 % (V. goudotiana) to 95.9 % (J. spinosa); significant variation was observed in the species V. goudotiana. The pollen viability of 68.0 % (V. goudotiana) to 96.0 % (J. spinosa) was reasonably good in these wild species. Crossings in breeding programs involving V. goudotiana should therefore be carefully planned, since part of the gametes of this species is unviable.
publishDate 2012
dc.date.none.fl_str_mv 2012-03-01
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=S1984-70332012000100007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332012000100007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1984-70332012000100007
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.12 n.1 2012
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
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