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Pahlevani, Amir Hossein ; Liede-Schumann, Sigrid ; Akhani, Hossein:
Seed and capsule morphology of Iranian perennial species of Euphorbia (Euphorbiaceae) and its phylogenetic application.
In: Botanical Journal of the Linnean Society.
Bd. 177
(2015)
Heft 3
.
- S. 335-377.
ISSN 1095-8339
DOI: https://doi.org/10.1111/boj.12245
Abstract
Of the 480 species of Euphorbiasubgenus Esula, c. 290 occur in the Mediterranean and Irano-Turanian regions. Turkey and Iran are the most species-rich countries in Asia with 83 and 74 species, respectively. Following our previous paper on annual species of Iranian Euphorbia, we studied the quantitative and qualitative macro- and micromorphological traits of seeds and capsules of 47 perennial species, including E. ferdowsiana sp. nov., E. sulphurea sp. nov. and E. glareosa, as a first report from Iran. A key for all Iranian perennial Euphorbiaspp. based on seed and capsule morphology is provided. The phylogenetic relationships of Iranian species based oninternal transcribed spacer (ITS) nuclear and ndhFplastid regions are updated and used for the characterizationof the synapomorphies of each clade. Capsule shape, seed shape, seed surface and shape of the caruncle have been found to be homoplastic, whereas the presence or absence of granulate elements on seed surfaces represents aphylogenetically important trait for section delimitation. The capsule surface is synapomorphic for several sections, includingHelioscopia (tuberculate-verrucose), Myrsiniteae(vesiculate) and Esula(granulate), and seed shape issynapomorphic for sectionsHelioscopia (ellipsoidal),Myrsiniteae (ovoid-quadrangular) and Herpetorrhizae(pseudo-hexahedral). Reversals have also taken place in some features, including capsule surface (E. mazandaranica,E. altissima) and seed shape (E. densa, E. aleppica). It seems that ecarunculate seeds are plesiomorphic in sectionsHelioscopia (E. eriophora) and Herpetorrhizae (E. consanguinea and E. turczaninowii).
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER127769 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik > Lehrstuhl Pflanzensystematik - Univ.-Prof. Dr. Sigrid Liede-Schumann Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 06 Jul 2015 10:24 |
| Letzte Änderung: | 06 Jul 2015 10:24 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/15796 |