Artículos de revistas
Cryptic dioecy is widespread in South American species of Symplocos section Barberina (Symplocaceae)
Registro en:
Plant Systematics And Evolution. Springer Wien, v. 277, n. 41671, n. 99, n. 104, 2009.
0378-2697
WOS:000262439100008
10.1007/s00606-008-0109-9
Autor
Aranha, JLM
Fritsch, PW
Almeda, F
Martins, AB
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Pollen morphology of ten Brazilian species within the South American clade (ca. 20 species) of Symplocos section Barberina (Symplocaceae) was analyzed with scanning electron microscopy to assess their reported androdioecious breeding system. All species exhibited pollen dimorphism. Pollen from male individuals is well developed and 3-colporate, whereas that from morphologically hermaphroditic individuals is malformed, often completely fragmented, lacks cytoplasm, and has no germination pores. Our results suggest that the morphologically hermaphroditic species of S. section Barberina with malformed pollen are cryptically dioecious. 277 41671 99 104 NSF [DEB-0126631] Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) NSF [DEB-0126631]