Abstract Detail

Molecular Ecology and Evolution

Turner, Barbara [1], Duangjai, Sutee [2], Paun, Ovidiu [1], Munzinger, Jerome [3], Chase, Mark [4], Samuel, Mary Rosabelle [5].

Evolution and diversity of the New Caledonian Diospyros (Ebenaceae).

The giant genus Diospyros of the family Ebenaceae is pantropically distributed and 31 species are found in New Caledonia. These 31 species cluster in four different clades in the DNA sequence based phylogeny of the family Ebenaceae, indicating four different origins of the New Caledonian species. In contrast to the three long-distance dispersal events on New Caledonia, the fourth colonization of Diospyros radiated to 24 endemic species that are morphologically distinct and occupy different ecological niches. AFLP helped to delimit the morphologically distinct species and confirm gene flow. However, phylogenetic relationship of these 24 species is not clarified even with the low-coverage NGS of the plastid and nuclear ribosomal DNA. But, more than 2,000 SNPs derived from RAD sequencing helped to resolve the phylogenetic relationships between these species and give indications that soil heterogeneity played a key role in this adaptive radiation

1 - University of Vienna, Dept. of Botany and Biodiversity Research, Rennweg 14, Vienna, 1030, Austria
2 - Faculty of Forestry, Kasetsart University, Dept. of Forest Biology, Chatuchak, Bangkok, Thailand
3 - UMR AMAP, IRD, TA A51/PS2 , 34398 Montpellier, Cedex 5, Montpellier, France
4 - Royal Botanic Gardens - Kew, Jodrell Laboratory, Kew Road, Richmond, N/A, TW9 3DS, United Kingdom
5 - University of Vienna, Dept. of Botany and Biodiversity Research, Rennweg 14, Vienna, Austria

Keywords:
Ebenaceae
Diospyros
New Caledonia
Rapid radiation
AFLP.

Presentation Type: Oral Paper:Papers for Topics
Session: 61
Location: Salon 15/16/The Shaw Conference Centre
Date: Wednesday, July 29th, 2015
Time: 8:00 AM
Number: 61001
Abstract ID:183
Candidate for Awards:None