Selective fertilization in interspecific crosses of allotetraploid species of Gossypium
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://www.nrcresearchpress.com/doi/10.1139/b11-094#.XAlntUSVtgQ http://www.locus.ufv.br/handle/123456789/23348 |
Resumo: | The genus Gossypium is composed of both diploid and allotetraploid species. The five allotetraploid species of Gossypium are sexually compatible, and only partial sexual barriers have been described. Natural hybrids among them do not occur or occur in situ with very low frequency in Brazil in the rare places where cultivated upland cotton (Gos- sypium hirsutum L.) occurs in a sympatric range with Gossypium barbadense L. or Gossypium mustelinum Miers. We evaluated the presence of pollen competition as a prezygotic barrier in crosses between upland cotton and G. barbadense and G. mustelinum. We found that G. barbadense pollinated with a mixture of 50% upland cotton and 50% G. barbadense pollen resulted in 17.4%–31.1% interspecific hybrids, depending upon the upland cotton genotype used as pollen donor. Mixtures containing pollen from G. mustelinum and upland cotton, used to pollinate G. mustelinum in proportions of 25%:75%, 50%:50%, and 75%:25%, produced 61.3%, 22.5%, and 3.6% interspecific hybrids, respectively. These low rates of hybrid production demonstrate that pollen competition is present with G. mustelinum and G. barbadense and confirms this mechanism as a sexual barrier. |
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Pereira, G. S.Sousa, R. L.Araújo, R. L.Hoffmann, L. V.Silva, E. F.Barroso, P. A. V.2019-02-05T12:23:14Z2019-02-05T12:23:14Z2012-031916-2804http://www.nrcresearchpress.com/doi/10.1139/b11-094#.XAlntUSVtgQhttp://www.locus.ufv.br/handle/123456789/23348The genus Gossypium is composed of both diploid and allotetraploid species. The five allotetraploid species of Gossypium are sexually compatible, and only partial sexual barriers have been described. Natural hybrids among them do not occur or occur in situ with very low frequency in Brazil in the rare places where cultivated upland cotton (Gos- sypium hirsutum L.) occurs in a sympatric range with Gossypium barbadense L. or Gossypium mustelinum Miers. We evaluated the presence of pollen competition as a prezygotic barrier in crosses between upland cotton and G. barbadense and G. mustelinum. We found that G. barbadense pollinated with a mixture of 50% upland cotton and 50% G. barbadense pollen resulted in 17.4%–31.1% interspecific hybrids, depending upon the upland cotton genotype used as pollen donor. Mixtures containing pollen from G. mustelinum and upland cotton, used to pollinate G. mustelinum in proportions of 25%:75%, 50%:50%, and 75%:25%, produced 61.3%, 22.5%, and 3.6% interspecific hybrids, respectively. These low rates of hybrid production demonstrate that pollen competition is present with G. mustelinum and G. barbadense and confirms this mechanism as a sexual barrier.Le genre Gossypium comprend à la fois des espèces diploïdes et al.lotétraploïdes. Les cinq espèces allotétraploïdes de Gossypium sont sexuellement compatibles et on a décrit seulement des barrières sexuelles partielles. Les hybrides naturels entre elles ne s’observent pas où à très faibles fréquences au Brésil, dans les rares places où on cultive le coton des hautes terres (Gossypium hirsutum L.), dans une région sympatrique avec le Gossypium barbadense L. ou le Gossypium mustelinum Miers. Les auteurs ont évalué la présence de compétition pollinique comme barrière pré-zygotique pour les croisements entre le coton des hautes terres et les G. barbadense et G. mustelinum. Ils ont effectué une pollinisation du G. barbadense avec un mélange de pollens à 50 % du coton des hautes terres et 50 % du G. barbadense, ce qui a conduit à la formation de 17,4 %–31,1 % d’hybrides interspécifiques, selon le génotype du coton des hautes terres dont le pollen a été utilisé. En utilisant des mélanges contenant des pollens du G. mustelinum et du coton des hautes terres dans des proportions de 25 % : 75 %, 50 % : 50 %, et 75 % : 25 %, ils ont obtenu 61,3 %, 22,5 %, et 3,6 % d’hybrides interspécifiques, respectivement. Le faible taux de production d’hybrides démontrent que la compétition pollinique existe entre les G. mustelinum et G. barbadense ce qui confirme ce mécanisme comme barrière sexuelle partielle.engBotanyVolume 90, Issue 3, Pages 159- 166, March 2012NRC Research Pressinfo:eu-repo/semantics/openAccessGossypium hirsutumG. barbadenseG. mustelinumPollen competitionReproductive barrierCompétition polliniqueBarrière reproductiveSelective fertilization in interspecific crosses of allotetraploid species of Gossypiuminfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf110636https://locus.ufv.br//bitstream/123456789/23348/1/artigo.pdf8bba52332594a0216251493bcc09809aMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/23348/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/233482019-02-05 09:32:09.567oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452019-02-05T12:32:09LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
title |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
spellingShingle |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium Pereira, G. S. Gossypium hirsutum G. barbadense G. mustelinum Pollen competition Reproductive barrier Compétition pollinique Barrière reproductive |
title_short |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
title_full |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
title_fullStr |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
title_full_unstemmed |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
title_sort |
Selective fertilization in interspecific crosses of allotetraploid species of Gossypium |
author |
Pereira, G. S. |
author_facet |
Pereira, G. S. Sousa, R. L. Araújo, R. L. Hoffmann, L. V. Silva, E. F. Barroso, P. A. V. |
author_role |
author |
author2 |
Sousa, R. L. Araújo, R. L. Hoffmann, L. V. Silva, E. F. Barroso, P. A. V. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pereira, G. S. Sousa, R. L. Araújo, R. L. Hoffmann, L. V. Silva, E. F. Barroso, P. A. V. |
dc.subject.pt-BR.fl_str_mv |
Gossypium hirsutum G. barbadense G. mustelinum Pollen competition Reproductive barrier Compétition pollinique Barrière reproductive |
topic |
Gossypium hirsutum G. barbadense G. mustelinum Pollen competition Reproductive barrier Compétition pollinique Barrière reproductive |
description |
The genus Gossypium is composed of both diploid and allotetraploid species. The five allotetraploid species of Gossypium are sexually compatible, and only partial sexual barriers have been described. Natural hybrids among them do not occur or occur in situ with very low frequency in Brazil in the rare places where cultivated upland cotton (Gos- sypium hirsutum L.) occurs in a sympatric range with Gossypium barbadense L. or Gossypium mustelinum Miers. We evaluated the presence of pollen competition as a prezygotic barrier in crosses between upland cotton and G. barbadense and G. mustelinum. We found that G. barbadense pollinated with a mixture of 50% upland cotton and 50% G. barbadense pollen resulted in 17.4%–31.1% interspecific hybrids, depending upon the upland cotton genotype used as pollen donor. Mixtures containing pollen from G. mustelinum and upland cotton, used to pollinate G. mustelinum in proportions of 25%:75%, 50%:50%, and 75%:25%, produced 61.3%, 22.5%, and 3.6% interspecific hybrids, respectively. These low rates of hybrid production demonstrate that pollen competition is present with G. mustelinum and G. barbadense and confirms this mechanism as a sexual barrier. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012-03 |
dc.date.accessioned.fl_str_mv |
2019-02-05T12:23:14Z |
dc.date.available.fl_str_mv |
2019-02-05T12:23:14Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://www.nrcresearchpress.com/doi/10.1139/b11-094#.XAlntUSVtgQ http://www.locus.ufv.br/handle/123456789/23348 |
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1916-2804 |
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1916-2804 |
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http://www.nrcresearchpress.com/doi/10.1139/b11-094#.XAlntUSVtgQ http://www.locus.ufv.br/handle/123456789/23348 |
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eng |
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eng |
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Volume 90, Issue 3, Pages 159- 166, March 2012 |
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NRC Research Press info:eu-repo/semantics/openAccess |
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NRC Research Press |
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