| introgressive hybridization between the allotetraploid coffea arabica and one of its diploid ancestors, coffea canephora, in an exceptional sympatric zone in new caledonia. | the importance of introgressive hybridization in plant evolution has long been recognized. nevertheless, information on gene flow between allopolyploids and their diploid relatives is very limited, even though gene flow could play a major role in polyploid establishment and evolution. here, we investigated the processes governing hybrid formation and introgression between the allotetraploid coffea arabica and one of its ancestral diploid progenitors, c. canephora, in a sympatric zone of new cale ... | 2007 | 17502905 |