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SHORT COMMUNICATION: Do farmers reduce genetic diversity when they domesticate tropical trees? A case study from Amazonia
Author(s) -
HOLLINGSWORTH P. M.,
DAWSON I. K.,
GOODALLCOPESTAKE W. P.,
RICHARDSON J. E.,
WEBER J. C.,
SOTELO MONTES C.,
PENNINGTON R. T.
Publication year - 2005
Publication title -
molecular ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.619
H-Index - 225
eISSN - 1365-294X
pISSN - 0962-1083
DOI - 10.1111/j.1365-294x.2005.02431.x
Subject(s) - amazon rainforest , biology , genetic diversity , ecology , domestication , agroforestry , amazonian , species richness , genetic erosion , population , demography , sociology
Agroforestry ecosystems may be an important resource for conservation and sustainable use of tropical trees, but little is known of the genetic diversity they contain. Inga edulis , a widespread indigenous fruit tree in South America, is used as a model to assess the maintenance of genetic diversity in five planted vs. five natural stands in the Peruvian Amazon. Analysis of five SSR (simple sequence repeat) loci indicated lower allelic variation in planted stands [mean corrected allelic richness 31.3 (planted) and 39.3 (natural), P = 0.009]. Concerns regarding genetic erosion in planted Amazonian tree stands appear valid, although allelic variation on‐farm is still relatively high.