Data/hora: 03/06/2024 06:29:20

Provedor de dados: | 39
País: | Brazil
Título: | Malpighiaceae: correlations between habit, fruit type and basic chromosome number
Autores: | Lombello,Ricardo A.; Forni-Martins,Eliana R.
Data: | 2003-06-01
Ano: | 2003
Palavras-chave: | Malpighiaceae; Malpighioideae; Byrsonimoideae; Chromosome number; Habit; Fruit types.
Resumo: | The family Malpighiaceae presents species with different habits, fruit types and cytological characters. Climbers are considered the most derived habit, followed, respectively, by the shrubby and arboreal ones. The present study examines the relationship between basic chromosome numbers and the derivation of climbing habit and fruit types in Malpighiaceae. A comparison of all the chromosome number reports for Malpighiaceae showed a predominance of chromosome numbers based on x=5 or 10 in the genera of sub-family Malpighioideae, mainly represented by climbers with winged fruits, whereas non-climbing species with non-winged fruits, which predominate in sub-family Byrsonimoideae, had counts based on x=6, which is considered the less derived basic number for the family. Based on such data, confirmed by statistic assays, and on the monophyletic origin of this family, we admit the hypothesis that morphological derivation of habit and fruit is correlated with chromosome basic number variation in the family Malpighiaceae.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062003000200001
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/S0102-33062003000200001
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.17 n.2 2003
Fonte: | info:eu-repo/semantics/openAccess