Chromosome analyses of prickly pear cacti reveal southern glacial refugia
Tuesday, February 14, 2012 - 10:01
in Paleontology & Archaeology
Analysis of chromosome number variation among species of a North American group of prickly pear cacti (nopales) showed that the most widespread species encountered are of hybrid origin. Those widespread species likely originated from hybridization among closely related parental species from western and southeastern North America. This study was published in the open access journal Comparative Cytogenetics.