Comparative floral ontogeny in Adesmia (Leguminosae: Papilionoideae: Dalbergieae)

被引：12
作者：
de Chiara Moco, Maria Cecilia [2 ]
de Araujo Mariath, Jorge Ernesto [1 ]
机构：
[1] Univ Fed Rio Grande do Sul, Dept Bot, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Parana, Dept Bot, Ctr Politecn, BR-81531990 Parana, PR, Brazil
来源：
AUSTRALIAN JOURNAL OF BOTANY | 2009年 / 57卷 / 01期
关键词：
EVOLUTION; MIRBELIEAE; INITIATION; FABACEAE; GENE;
D O I：
10.1071/BT07092
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Floral organogenesis of six Brazilian species of Adesmia DC. was studied by scanning electron microscopy. Considering the number of species, this is the most comprehensive organogenetic study of a genus conducted. A unidirectional sepal formation from the adaxial towards the abaxial side of the floral meristem is shown for the first time in the subfamily Papilionoideae. This pattern was found in all studied taxa except for A. latifolia in which the five sepal primordia are formed simultaneously. The present study suggests that the ontogenetic. oral differences among Adesmia species may be useful in a re-evaluation of infrageneric categories and for future systematic analyses.
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收藏
页码：65 / 75
页数：11
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