Chloroplast diversity in Vouacapoua americana (Caesalpiniaceae), a neotropical forest tree

Dutech Cyril, Maggia Laurent, Joly Hélène. 2000. Chloroplast diversity in Vouacapoua americana (Caesalpiniaceae), a neotropical forest tree. Molecular Ecology (9) : 1427-1432.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : The chloroplast genome has been widely used to describe genetic diversity in plant species. Its maternal inheritance in numerous angiosperm species and low mutation rate are suitable characters when inferring historical events such as possible recolonization routes. Here we have studied chloroplast DNA variation using PCR-RFLP (polymerase chain reactionrestriction fragment length polymorphism) with seven pairs of primers and four restriction enzymes in 14 populations of Vouacapoua americana (Caesalpiniaceae) a neotropical tree sampled throughout French Guiana. Population diversity W,), total gene diversity (Ht) and differentiation among populations (GST) were estimated using Nei's method as 0.09, 0.87 and 0.89, respectively. This is consistent with the limited gene flow associated with synzoochory in this species. The genetic structure observed in the north of French Guiana suggests that historical events such as contractions and recent recolonizations have had a large impact on the distribution of genetic diversity in this species.

Mots-clés Agrovoc : Caesalpinia, génome, carte génétique, histoire, biodiversité, variation génétique

Mots-clés géographiques Agrovoc : Guyane française, France

Classification Agris : F30 - Génétique et amélioration des plantes

Auteurs et affiliations

• Dutech Cyril, CIRAD-FORET-FORETS NATURELLES (GUF)
• Maggia Laurent, CIRAD-FORET-FORETS NATURELLES (GUF) ORCID: 0000-0001-9975-9081
• Joly Hélène, CIRAD-FORET-DIR (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/476706/)

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