Consulta: subjectFacets:"Monoembryony"
Registros recuperados: 1
Data/hora: 08/06/2024 16:25:35

Self-sterility in the hexaploid Handroanthus serratifolius (Bignoniaceae), the national flower of Brazil
Provedor de dados: 39
Autores: Alves,Mariana Ferreira; Duarte,Mariana Oliveira; Oliveira,Paulo Eugênio; Sampaio,Diana Salles.
Polyploidization is common among angiosperms and might induce typically allogamous plants to become autogamous (self-compatible, relying on sexual self-fertilization) or apomictic (achieving asexual reproduction through seeds). This work aimed to determine whether neopolyploidy leads to the breakdown of the self-incompatibility system in the hexaploid non-apomictic species Handroanthus serratifolius (Vahl) S. Grose, through analyses of its floral biology, pollination biology and breeding system. Although anthesis lasted for three days, increasing the overall floral display, receptivity decreased as of the second day. Centridini and Euglossini bees were the main pollinators, and low nectar availability (1.95 ± 1.91 µl/flower) might have obliged them to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apomixis; Late-acting self-incompatibility; Monoembryony; Polyploidy; Tabebuia serratifolia.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400010