Ontology highlight
ABSTRACT:
SUBMITTER: Kim ST
PROVIDER: S-EPMC2517606 | biostudies-literature | 2008 Aug
REPOSITORIES: biostudies-literature
Kim Sang-Tae ST Sultan Sonia E SE Donoghue Michael J MJ
Proceedings of the National Academy of Sciences of the United States of America 20080818 34
Using a low-copy nuclear gene region (LEAFY second intron) we show multiple instances of allopolyploid speciation in Persicaria (Polygonaceae), which includes many important weeds. Fifteen species seem to be allopolyploids, which is higher than the number found in previous comparisons of chloroplast DNA and nuclear ribosomal internal transcribed spacer (nrITS) phylogenies. This underestimation of the extent of allopolyploidy is due in at least three cases to homogenization of nrITS toward the ma ...[more]