Open AccessContribution to the karyological knowledge of Echinops (Asteraceae, Cardueae) and related genera
Author(s) -
GARNATJE TERESA,
VILATERSANA ROSER,
SUSANNA ALFONSO,
VALLÈS JOAN,
SILJAKYAKOVLEV SONJA
Publication year - 2004
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.1095-8339.2003.00280.x
Subject(s) - biology , asteraceae , taxon , tribe , chromosome , chromosome number , ploidy , botany , karyotype , zoology , evolutionary biology , genetics , gene , sociology , anthropology
Twenty‐six chromosome counts were made of several genera of the tribe Cardueae from various European and Asian provenances: Acantholepis (one species studied), Amphoricarpus (1), Chardinia (1), Echinops (14 species, 15 populations), Siebera (1), Staehelina (3) and Xeranthemum (4). Eleven of the reports are made for the first time, ten confirm previous counts, while the remainder report disparities with earlier records. The existence of different basic chromosome numbers and ploidy levels suggests dysploidy and polyploidy as the main mechanisms of chromosomal evolution in the taxa considered. © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society , 2004, 145 , 337−344.