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hoa, tran thi [1].

Utilization and conservation of a hardwood medical forest species: Xerospermum noronhianum (Sapindaceae)Hoa Tran1, Shinya Kanzaki2 and Patrick Van Damme 3

 
Xerospermum noronhianum (Blume) Blume, locally known as (leech’s longan) is a multipurpose fruit tree species of high economic importance, native to the limestone forests of Vietnam. This species along with lychee (Litchi chinensis Sonn) belong to the Sapindaceae family. The fruits of X. noronhianum are edible, with a sweet and pleasant taste, resembling those of Nephellium lappaceum, another Sapindaceae species that yields the commercially important Rambutan tropical fruit. The fruit of X. noronhianum is too small to be of any commercial value, but the species is a source of medicines against diarrhea, stomach pains and Alzheimer disease. Recently, has emerged as a high-priority species for domestication in Vietnam after a national survey and ranking of non-timber forest products. Information on the level of genetic variation and the extent of genetic diversity within and between natural and managed populations is needed to develop strategies for domestication. We investigated the transferability of 14 lychee (L. chinensis) Simple Sequence Repeat (SSR) loci to (X. noronhianum).Ten primer pairs were found to be transferable (71.4%), whereas seven revealed polymorphisms (70%). The average number of alleles per locus has dropped from 6.1 for lychee to 4.7 for . The loci were polymorphic in 110 individuals from 5 populations in Vietnam, with 2 to 10 alleles per locus and observed heterozygosity ranging from 0.14 to 0.76. The relatively high frequency of cross-transferability observed in this study is rather unexpected as belongs to the Sapindoideae subfamily, while lychee, pulasan, and longan belong to subfamily Nepheleae and are, therefore, more closely related. However, this study showed that the SSR markers developed in lychee are a good source of molecular markers for X. noronhianum.


1 - Center for Biodiversity and Biosafety, Institute of Agricultural Genet, Forest Genetics and Conservation, 10/106 Hoang Quoc Viet street, Hanoi, HN, 10000, vietnam

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Presentation Type: Oral Presentation
Number:
Abstract ID:93
Candidate for Awards:None