SBICafé
Biblioteca do Café

Relationship between meiotic instability and fertility in F2 generation Arabusta coffee plants

Mostrar registro simples

dc.contributor.author Granato, Laís Moreira
dc.contributor.author Ramos, Luis Carlos da Silva
dc.contributor.author Pinto-Maglio, Cecília Alzira Ferreira
dc.date.accessioned 2021-12-02T12:34:20Z
dc.date.available 2021-12-02T12:34:20Z
dc.date.issued 2019
dc.identifier.citation GRANATO, L. M.; RAMOS, L. C. S.; PINTO-MAGLIO, C. A. F. et al. Relationship between meiotic instability and fertility in F2 generation Arabusta coffee plants. Bragantia, Campinas, v. 78, n. 2, p. 215-228, abr./jun. 2019. pt_BR
dc.identifier.issn 1678-4499
dc.identifier.uri https://doi.org/10.1590/1678-4499.20180215 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12861
dc.description.abstract Parental plants, an F1 interspecific hybrid and the F2 generation from Arabusta coffee plants were investigated for meiotic behavior and viability of pollen to understand part of their reproductive biology that affects their possible use in coffee breeding programs. Both parental plants (C. canephora var. Robusta 4x and C. arabica var. dihaploid Bourbon Vermelho) showed a meiosis diploid-like behavior, despite presenting a small percentage of irregularities, just as occurred for the F1 Arabusta hybrid. On the other hand, all F2 plants showed a higher frequency of anomalies that compromised pollen viability. The highest meiotic indices were registered for three analyzed plants of the F2 generation, and the pollen viability tests revealed the highest values for staining (PVS) and germination in vitro tests (PVG) for three others different F2 plants. The meiotic analysis and pollen viability tests may facilitate the selection of the best genetic resources, reducing the time needed for producing new hybrid cultivars. F2 plants which have high meiotic indices and/or high pollen fertility could be used as pollen donors in crossbreeding programs when there is interest in their functional or morphological characteristics. In contrast, the F2 plants that showed low pollen viability could be exploited as sterile male plants or discarded from a breeding program. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Instituto Agronômico (IAC) pt_BR
dc.relation.ispartofseries Bragantia;v.78, n.2, 2019
dc.rights Open Access pt_BR
dc.subject Microsporogenesis pt_BR
dc.subject Meiotic index pt_BR
dc.subject Pollen viability pt_BR
dc.subject Post-meiotic products pt_BR
dc.subject.classification Cafeicultura::Genética e melhoramento pt_BR
dc.title Relationship between meiotic instability and fertility in F2 generation Arabusta coffee plants pt_BR
dc.type Artigo pt_BR

Arquivos deste item

Arquivos Tamanho Formato Visualização
Bragantia_v. 78_n. 2_p. 215 - 228_2019.pdf 1.774Mb application/pdf Visualizar/Abrir ou Pre-visualizar

Este item aparece na(s) seguinte(s) coleção(s)

  • Bragantia [359]
    Artigos relacionados a Cafeicultura

Mostrar registro simples

Buscar em toda a Biblioteca


Sobre o SBICafé

Navegar

Minha conta