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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
04/10/2022 |
Data da última atualização: |
06/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ALVES, I. L. de S.; SANTOS, C. A. F. |
Afiliação: |
ÍTALA LAYANNE DE SOUZA ALVES, State University of Feira de Santana, Feira de Santana, BA; CARLOS ANTONIO FERNANDES SANTOS, CPATSA. |
Título: |
Outcrossing and heterozygosity rates in tropical onion populations. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Comunicata Scientiae, v. 13, e3489, 2022. |
ISSN: |
2177-5133 |
DOI: |
https://doi.org/10.14295/CS.v13.3489 |
Idioma: |
Inglês |
Conteúdo: |
Outcrossing and heterozygosity rates are important to define genetic conservation and breeding strategies, and these estimates are quite rare for onions. This study aimed to estimate cross-pollination and heterozygosity rates in tropical onion populations to guide the development of new varieties. Eight tropical onion pairs were isolated in the field to be open-pollinated by insects. Vernalized parent bulbs were used for pair-crossing in 1:1 alternate rows. Seeds were harvested from the female parents to assess the outcrossing and heterozygosity rates of the progenies based on the color of the red bulb, which is partially dominant over yellow, and four microsatellite loci. The outcrossing estimates based on the morphological marker in the ?BRS Rio Vale? × ?BRS Carrancas?, ?Botucatu? × ?BRS Carrancas?, ?IPA 11? × ?IPA 10?, and ?BRS Alfa São Francisco? × ?IPA10? crosses ranged from 15% to 39%, with an average of 28.2%, whereas with microsatellite loci, in the ?BRS Alfa São Francisco?×?IPA 11?, ?Alfa SF RT? × ?BRS A. São Francisco?, ?BRS Rio Vale? × ?Botucatu?, and ?Cascuda T6? × ?Botucatu? crosses, the values ranged from 33% to 71%, with an average of 42.7%, indicating both cross-pollination and self-pollination within the progenies. The average heterozygosity values in the eight populations ranged from 0.82 to 1.0, highlighting the potential for developing open-pollinated onion varieties highly adapted to biotic and abiotic stresses. |
Palavras-Chave: |
Cebola tropical; Marcação morfológica; Microssatélites; Polinização cruzada. |
Thesagro: |
Allium Cepa; Cebola; Melhoramento Genético Vegetal. |
Thesaurus Nal: |
Onions. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147090/1/Outcrossing-and-heterozygosity-rates-in-tropical-onion-populations-2022.pdf
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Marc: |
LEADER 02208naa a2200253 a 4500 001 2147090 005 2023-01-06 008 2022 bl uuuu u00u1 u #d 022 $a2177-5133 024 7 $ahttps://doi.org/10.14295/CS.v13.3489$2DOI 100 1 $aALVES, I. L. de S. 245 $aOutcrossing and heterozygosity rates in tropical onion populations.$h[electronic resource] 260 $c2022 520 $aOutcrossing and heterozygosity rates are important to define genetic conservation and breeding strategies, and these estimates are quite rare for onions. This study aimed to estimate cross-pollination and heterozygosity rates in tropical onion populations to guide the development of new varieties. Eight tropical onion pairs were isolated in the field to be open-pollinated by insects. Vernalized parent bulbs were used for pair-crossing in 1:1 alternate rows. Seeds were harvested from the female parents to assess the outcrossing and heterozygosity rates of the progenies based on the color of the red bulb, which is partially dominant over yellow, and four microsatellite loci. The outcrossing estimates based on the morphological marker in the ?BRS Rio Vale? × ?BRS Carrancas?, ?Botucatu? × ?BRS Carrancas?, ?IPA 11? × ?IPA 10?, and ?BRS Alfa São Francisco? × ?IPA10? crosses ranged from 15% to 39%, with an average of 28.2%, whereas with microsatellite loci, in the ?BRS Alfa São Francisco?×?IPA 11?, ?Alfa SF RT? × ?BRS A. São Francisco?, ?BRS Rio Vale? × ?Botucatu?, and ?Cascuda T6? × ?Botucatu? crosses, the values ranged from 33% to 71%, with an average of 42.7%, indicating both cross-pollination and self-pollination within the progenies. The average heterozygosity values in the eight populations ranged from 0.82 to 1.0, highlighting the potential for developing open-pollinated onion varieties highly adapted to biotic and abiotic stresses. 650 $aOnions 650 $aAllium Cepa 650 $aCebola 650 $aMelhoramento Genético Vegetal 653 $aCebola tropical 653 $aMarcação morfológica 653 $aMicrossatélites 653 $aPolinização cruzada 700 1 $aSANTOS, C. A. F. 773 $tComunicata Scientiae$gv. 13, e3489, 2022.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
04/12/2018 |
Data da última atualização: |
19/12/2018 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
Autoria: |
NAKASU, E. Y. T.; HEDIL, M.; NAGATA, T.; MICHEREFF FILHO, M.; LUCENA, V. S.; INOUE-NAGATA, A. K. |
Afiliação: |
ERICH YUKIO TEMPEL NAKASU, CNPH; MARCIO HEDIL, DEPARTAMENTO BIOLOGIA. UNIVERSIDADE DE BRASÍLIA.; TATSUYA NAGATA, DEPARTAMENTO DE BIOLOGIA. UNIVERSIDADE DE BRASÍLIA.; MIGUEL MICHEREFF FILHO, CNPH; VIVIAN S. LUCENA, DEPARTAMENTO DE BIOLOGIA. UNIVERSIDADE DE BRASÍLIA.; ALICE KAZUKO INOUE NAGATA, CNPH. |
Título: |
Complete geneme sequence and phylogenetic analysis of a novel dicistrovirus associated with the whitefly Bemisia tabaci. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Virus Research, v. 260, p. 49-52, Jan. 2019. |
DOI: |
https://doi.org/10.1016/j.virusres.2018.11.008 |
Idioma: |
Inglês |
Palavras-Chave: |
High-throughput sequencing; Next generation sequencing. |
Thesagro: |
Bemisia Tabaci; Mosca Branca; Vírus. |
Thesaurus NAL: |
Dicistroviridae; Insect viruses; Picornavirales; RNA viruses. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00911naa a2200289 a 4500 001 2100627 005 2018-12-19 008 2019 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.virusres.2018.11.008$2DOI 100 1 $aNAKASU, E. Y. T. 245 $aComplete geneme sequence and phylogenetic analysis of a novel dicistrovirus associated with the whitefly Bemisia tabaci.$h[electronic resource] 260 $c2019 650 $aDicistroviridae 650 $aInsect viruses 650 $aPicornavirales 650 $aRNA viruses 650 $aBemisia Tabaci 650 $aMosca Branca 650 $aVírus 653 $aHigh-throughput sequencing 653 $aNext generation sequencing 700 1 $aHEDIL, M. 700 1 $aNAGATA, T. 700 1 $aMICHEREFF FILHO, M. 700 1 $aLUCENA, V. S. 700 1 $aINOUE-NAGATA, A. K. 773 $tVirus Research$gv. 260, p. 49-52, Jan. 2019.
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