Selecting populations for gene conservation purposes in forestry: a study case with Alnus acuminata in Costa Rica and Panama
Abstract
In forest gene conservation programs there is a continuous discussion on criteria for population elections. Before actions are initiated, it is necessary to define what is a gene resource and which of the particular populations (entries) deserve highest priority. Most gene conservation programs are oriented to 1) yield potential: genetic potential for expressions of desirable phenotypic characters; (2) genetic adaptability: the ability of populations to survive and reproduce even in a changed environment; (3) conservation of as much variation as possible. This work presents the study case of Alnus acuminata in Costa Rica and Panama and an extensive discussion on different criteria for population selection. Variables evenness deviation, proposed in this study {ed = Σpi – p-/[2(n – 1)/n]} and genetic diversity [v = ( p2i )-1], both as culling levels, showed the best criteria for populations selection. At least there was found one good candidate population in each of the three most important geographical region (breeding region), suitable for gene conservation purposes: Vara Blanca (Region Poás II), San Gerardo (Region Talamanca) and Boquete (Region Panama). Possibilities of in situ gene conservation in natural protected areas are also discussed.Downloads
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.