Open AccessPolyploidy in Aconitum subgenus Lycoctonum (Ranunculaceae)
Author(s) -
YUAN QIONG,
YANG QINER
Publication year - 2006
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2006.00468.x
Subject(s) - ranunculaceae , subgenus , aconitum , biology , taxon , ploidy , botany , karyotype , zoology , taxonomy (biology) , chromosome , genetics , gene , alkaloid
Chromosome numbers and morphology in 22 populations belonging to 11 taxa of Aconitum subgenus Lycoctonum (Ranunculaceae) from China were studied. Some taxa were diploid, with 2 n = 16, but four species and two varieties were found to be tetraploid, with 2 n = 32. They are concentrated in the Hengduan Mountains region in south‐west China, indicating that polyploidy could have played an important role in the speciation of the subgenus in this region, one of the areas of the world with a high concentration of endemic species. The relationships of some of the species are discussed. © 2006 The Linnean Society of London, Botanical Journal of the Linnean Society , 2006, 150 , 343–353.