Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs

Bekessy, S. A., Allnutt, T. R., Premoli, A. C., Lara, A., Ennos, R. A., Burgman, M. A., Cortes, M. and Newton, A. C. 2002, Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs, Heredity, vol. 88, no. 4, pp. 243-249, doi: 10.1038/sj.hdy.6800033.

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Title Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs
Author(s) Bekessy, S. A.
Allnutt, T. R.ORCID iD for Allnutt, T. R.
Premoli, A. C.
Lara, A.
Ennos, R. A.
Burgman, M. A.
Cortes, M.
Newton, A. C.
Journal name Heredity
Volume number 88
Issue number 4
Start page 243
End page 249
Total pages 7
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2002-04
ISSN 0018-067X
Keyword(s) Conservation of Natural Resources
DNA Primers
DNA, Plant
Genetic Variation
Polymerase Chain Reaction
Random Amplified Polymorphic DNA Technique
South America
Summary Araucaria araucana (Monkey Puzzle), a southern South American tree species of exceptional cultural and economic importance, is of conservation concern owing to extensive historical clearance and current human pressures. Random amplified polymorphic DNA (RAPD) markers were used to characterise genetic heterogeneity within and among 13 populations of this species from throughout its natural range. Extensive genetic variability was detected and partitioned by analysis of molecular variance, with the majority of variation existing within populations (87.2%), but significant differentiation was recorded among populations (12.8%). Estimates of Shannon's genetic diversity and percent polymorphism were relatively high for all populations and provide no evidence for a major reduction in genetic diversity from historical events, such as glaciation. All pairwise genetic distance values derived from analysis of molecular variance (Phi(ST)) were significant when individual pairs of populations were compared. Although populations are geographically divided into Chilean Coastal, Chilean Andes and Argentinean regions, this grouping explained only 1.77% of the total variation. Within Andean groups there was evidence of a trend of genetic distance with increasing latitude, and clustering of populations across the Andes, suggesting postglacial migration routes from multiple refugia. Implications of these results for the conservation and use of the genetic resource of this species are discussed.
Language eng
DOI 10.1038/sj.hdy.6800033
Field of Research 060499 Genetics not elsewhere classified
0604 Genetics
0603 Evolutionary Biology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, Nature Publishing Group
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Document type: Journal Article
Collection: School of Medicine
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