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Abstract Detail

Systematics Section

Chokthaweepanich, Hathairat [1], Fisher, Amanda [2], Dransfield, Soejatmi [3], Widjaja, Elizabeth [4], Wong, Khoon Meng [5], Rattamanee, Chakkrapong [6], Clark, Lynn [1].

Phylogeny and classification of the paleotropical woody bamboos (Poaceae: Bambusoideae: Bambuseae).

The paleotropical woody bamboo clade consists of ca. 460 species, or approximately a third of total bamboo diversity, and is widely distributed in Asia, Africa, Australia, India, Sri Lanka, and Madagascar. These bamboos are important and even dominant elements in many paleotropical forest habitats and have a multitude of uses for humans. Despite the important ecological and economic roles of these bamboos, the phylogenetic relationships of their major lineages have remained obscure. Our objectives were to test the monophyly of the four currently recognized subtribes of paleotropical woody bamboos and examine their phylogenetic relationships. Sixty-five species of the Bambusinae (18 genera; 36 spp.), Melocanninae (7 genera; 15 spp.), Hickeliinae (9 genera; 11 spp.), and Racemobambosinae (2 genera; 3 spp.), two species of Incertae Sedis, and six outgroup species of Neotropical woody bamboos were sequenced for both non-coding (trnD-trnT, rpl16 intron, rps16 intron) and coding (ndhF3, matK) chloroplast DNA regions. Phylogenetic analyses supported subtribe Melocanninae as monophyletic and sister to all other paleotropical woody bamboos, consistent with previous analyses. The other three subtribes were resolved as paraphyletic orpolyphyletic, with relatively poor resolution and support within the diverse Bambusinae. The taxa of subtribe Hickeliinae from Madagascar, however, did form a monophyletic group with strong support. The evolution of selected morphological characters including vegetative branching, synflorescence architecture and fruit type is examined using the phylogeny.

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1 - Iowa State University, Department Of Ecology, Evolution, And Organismal Biology, 253 Bessey Hall, Ames, IA, 50011-1020, USA
2 - Idaho State University, Department of Biological Sciences, 921 South 8th Avenue, Stop 8007, Pocatello, ID, 83209-8007, USA
3 - Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK
4 - Herbarium Bogoriense, Puslitbang Biologi LIPI, Bogor, INDONESIA
5 - Singapore Botanic Gardens, 1 Cluny Road , 259569, Singapore
6 - Kasetsart Uiversity, Department of Horticulture, Faculty of Agriculture, 50 Phahon Yothin Rd, Chatuchak, Bangkok, 10900, THAILAND

Paleotropical woody bamboos
chloroplast DNA

Presentation Type: Oral Paper:Papers for Sections
Session: 44
Location: Lindell A/Chase Park Plaza
Date: Wednesday, July 13th, 2011
Time: 8:45 AM
Number: 44002
Abstract ID:532

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