Open AccessSeed, pollen morphology and numerical analysis of Tephrosia Pers. (Fabaceae) and their taxonomic significance
Author(s) -
Ahmed Elkordy,
Ahmed K. Osman,
Mohamed O. Badry
Publication year - 2022
Publication title -
acta botanica croatica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.284
H-Index - 22
eISSN - 1847-8476
pISSN - 0365-0588
DOI - 10.37427/botcro-2022-012
Subject(s) - pollen , biology , upgma , clade , taxon , botany , genus , fabaceae , morphology (biology) , zoology , phylogenetic tree , genotype , gene , biochemistry
In Egypt, the seed and pollen grain morphology of the genus Tephrosia Pers. were studied using light and scanning electron microscopy. Qualitative and quantitative characters of seeds and pollen grains are presented. The data suggest that several seed and pollen morphological characters can distinguish the taxa of Tephrosia. Based on UPGMA clustering analysis and PCA, three main clades were recognized: Clade A comprising T. kassasii, clade B comprising T. apollinea, T. purpurea, T.quartiniana, and T. uniflora, and clade C comprising T. nubica. The seed and pollen morphological data obtained in this study provide additional characters helping in classifying the genus. Dichotomous artificial keys based on seed and pollen data of the investigated taxa are presented.