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Abstract Detail

Systematics Section/ASPT

Ickert-Bond, Stefanie [1], Wen, Jun [2].

Leaf anatomical characters in the Vitis – Ampelocissus clade correlate with a transition from tropical to temperate climate.

Recent phylogenetic analyses have shown that the grape genus Vitis L. forms a clade with the tropical genera Ampelocissus Planch., Nothocissus (Miq.) Latiff and Pterisanthes Blume (referred to as the Vitis – Ampelocissus clade). While Vitis has attracted much attention from phylogeneticists recently, its tropical relatives remain poorly understood. Ampelocissus with 90 species is mostly distributed in Malaysia, southern Asia, and Africa, with five species occurring in Central America. Both Pterisanthes with 20 species and monotypic Nothocissus are Malesian endemics. We conducted a leaf anatomical and micromorphological survey based on 13 exemplar taxa from the Vitis – Ampelocissus clade to examine the character changes that are correlated with the transition from the tropical to temperate climate using both light microscopy and scanning electron microscopy. Major differences are detected in leaf margin, stomata, trichome, anatomical structure of the mesophyll differentiation and raphide characters, with higher morphological diversity showing in the tropical relatives of Vitis, i.e., in the Ampelocissus – Nothocissus – Pterisanthes group, which constitutes the newly defined Ampelocissus s.l. clade.

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1 - University Of Alaska Museum Of The North, Herbarium (ALA) And Dept. Of Biology And Wildlife, University Of Alaska Fairbanks, 907 Yukon Dr., Fairbanks, AK, 99775, USA
2 - Smithsonian Institution, Botany, MRC-166 National Museum Of Natural History, 10th St. & Constitution Ave., NW, MRC 166, Washington/DC, N/A, 20013-7012, USA

Vitis Ampelocissus clade
leaf anatomy

Presentation Type: Poster:Posters for Sections
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PSY016
Abstract ID:510
Candidate for Awards:None

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