Genetic relationships among Hylocereus and Selenicereus vine cacti (Cactaceae): evidence from hybridization and cytological studies Academic Article uri icon


  • Abstract• Background and Aims Hylocereus and Selenicereus are native to tropical and sub- tropical America. Based on its taxonomic status and crossability relations it was postulated that H. megalanthus (syn. S. megalanthus) is an allotetraploid (2 n= 4 x= 44) derived from natural hybridization between two closely related diploid taxa. The present work aimed at elucidating the genetic relationships between species of the two genera.• Methods Crosses were performed and the putative hybrids were analysed by chromosome counts and …

publication date

  • August 25, 2004