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Pollen morphology of some tribes of Brassicaceae from Egypt and its systematic implications
Author(s) -
Abdel Khalik K.,
van den Berg R. G.,
van der Maesen L. J. G.,
El Hadidi M. N.
Publication year - 2002
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/1522-239x(200208)113:3/4<211::aid-fedr211>3.0.co;2-a
Subject(s) - brassicaceae , pollen , genus , botany , biology , morphology (biology) , zoology
Pollen morphology of 39 species belonging to 23 genera of the tribes Arabideae, Euclidieae, Hes‐perideae, Lunarieae, Matthioleae and Sisymbrieae from Brassicaceae from Egypt were studied by using scanning electron microscope (SEM). The pollen grains were tricolpate. Their shape varies from prolate spheroidal, subprolate to prolate. Three pollen types can be distinguished based on the size of the lumina. The ornamentation varies between genera within the tribes and between species within the same genus. The ornamentation was found use‐ful to distinguish among closely related genera such as Matthiola, Morettia and Diceratella and among species in the same genus such as Arabis, Morettia, Malcolmia and Neotorularia . Our results suggest that tribes Sisymbrieae, Matthioleae, Hesperideae and Arabideae are heterogeneous because all three types of ornamentation are found among the genera of these tribes. However, the tribes Euclidieae and Lunarieae are homogeneous because we found only one type of ornamentation among the genera.