Article (Scientific journals)
Microsatellite Development and Flow Cytometry in the African Tree Genus Afzelia (Fabaceae, Caesalpinioideae) Reveal a Polyploid Complex
Donkpegan, Segbedji; Doucet, Jean-Louis; Daïnou, Kasso et al.
2015In Applications in Plant Sciences, 3(1)
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Keywords :
Afzelia; Caesalpinioideae; Fabaceae; microsatellites; next-generation sequencing; polyploidy; tropical timber tree
Abstract :
[en] Premise of the study: Microsatellites were developed in the vulnerable African rainforest tree Afzelia bipindensis to investigate gene flow patterns. Methods and Results: Using 454 GS-FLX technique, 16 primer sets were identified and optimized, leading to 11 polymorphic and readable markers displaying each six to 25 alleles in a population. Up to four alleles per individual were found in each of the loci, without evidence of fixed heterozygosity, suggesting an autotetraploid genome. Cross-amplification succeeded for all loci in the African rainforest species A. pachyloba and A. bella, which appeared tetraploid, and for most loci in the African woodland species A. africana and A. quanzensis, which appeared diploid, but failed in the Asian species A. xylocarpa. Flow cytometry confirmed the suspected differences in ploidy. Conclusions: African Afzelia species are diploid or tetraploid, a situation rarely documented in tropical trees. These newly developed microsatellites will help in the study of their mating system and gene flow patterns.
Research center :
Université de Liège / Ingénierie des biosystèmes (Biose) / Laboratoire de Foresterie des régions trop. et subtropicales
[Université Libres de Bruxelles / Biologie des organismes / Evolution Biologique et Ecologie
Disciplines :
Genetics & genetic processes
Author, co-author :
Donkpegan, Segbedji ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Doucet, Jean-Louis ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Daïnou, Kasso  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Hardy, Olivier;  Université Libre de Bruxelles - ULB > Biologie des Organismes > Evolution Biologique et Ecologie
Language :
English
Title :
Microsatellite Development and Flow Cytometry in the African Tree Genus Afzelia (Fabaceae, Caesalpinioideae) Reveal a Polyploid Complex
Publication date :
07 January 2015
Journal title :
Applications in Plant Sciences
eISSN :
2168-0450
Publisher :
BioOne, Washington, United States
Special issue title :
1400097
Volume :
3(1)
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 15 June 2015

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