| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Universidade de São Paulo. Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Departamento de Biologia - Brasil
[2] Instituto de Botânica - Brasil
[3] Instituto de Botânica - Brasil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Rev. bras. Bot.; v. 33, n. 1, p. 13-20, 2010-03-00. |
| Abstract | |
A palinological study covering all 10 species of the Neotropical genus Hortia Vand. (Rutaceae) was conducted. Pollen grains were collected from herbarium exsiccates, acetolysed and mounted in glycerine jelly on glass slides. The grains were studied under light and scanning electron microscopy, including measurements of polar and equatorial diameters, shape of the grains, number and shape of apertures, and thickness of the exine. The results demonstrated that the genus is stenopalynous, with pollen grains in monads, subprolate to prolate, 3-colporate, with very thick exine and a psilate-perforate pattern of ornamentation. Pollen grains of all species revealed a great similarity, with few variations in the pattern of ornamentation of exine, number and form of apertures and measurements. Although well-characterized palinologycally, pollen features did not furnish relevant information on the position of Hortia into an intrafamilial phylogeny. (AU) | |
| FAPESP's process: | 06/03170-0 - Phylogenetic and systematic studies in Rutaceae: phylogeny and delimitation of Galipeinae (Galipeae) based on nuclear and plastidial DNA sequences |
| Grantee: | Milton Groppo Júnior |
| Support Opportunities: | Research Grants - Young Investigators Grants |