Abstract:
:The trnL-trnF intergenic spacer of cpDNA has been sequenced from 38 tree samples representing 23 Coffea taxa and the related genus Psilanthus. These sequences were used for phylogenetic reconstruction using parsimony analyses. The results suggest a radial mode of speciation and a recent origin in Africa for the genus Coffea. Phylogenetic relationships inferred from the cpDNA analysis suggest several major clades, which present a strong geographical correspondence (i.e., west Africa, central Africa, east Africa, and Madagascar). The overall results agree well with the phylogeny previously inferred from nuclear genome data. However, several inconsistencies are observed among taxa endemic to west Africa, suggesting the occurrence of introgressive hybridization. Evidence is also obtained for the genetic origin of the allotetraploid species C. arabica.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Cros J,Combes MC,Trouslot P,Anthony F,Hamon S,Charrier A,Lashermes Pdoi
10.1006/mpev.1997.0453subject
Has Abstractpub_date
1998-02-01 00:00:00pages
109-17issue
1eissn
1055-7903issn
1095-9513pii
S1055-7903(97)90453-Xjournal_volume
9pub_type
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