TY - JOUR
T1 - Chromosome studies of native lowland diploid species of Taraxacum (Asteraceae) in Japan
AU - Sato, Kyoko
AU - Iwatsubo, Yoshikane
AU - Naruhashi, Naohiro
PY - 2007/9
Y1 - 2007/9
N2 - Diploid lowland Taraxacum classified as T. elatum, T. hondoense, T. longeappendiculatum, T. japonicum, T, maruyamanum and T. platycarpum according to Kitamura (1957) were studied cytologically. Karyotypic formulae of the 6 forms were as follows: T. platycarpum, 2n=16=2M+ 10m+4mcs; T. elatum, 2n=16=12m+4mcs: T. hondoense, 2n=16=2M+10m+4mcs; T. longeappendiculatum, 2n=16=12m+4wcs; T. japonicum, 2n=16=12m+4m cs; T. maruyamanum, 2n=16=14m+2mcs. The karyotypes from T. elatum, T. hondoense, T. longeappendiculatum, T. japonicum and T. platycarpum had similar formulae described as 2n=16=12(M+m)+4mcs. In contrast, that of T. maruyamanum was 2n=16=14w+2mcs. The karyological data support the taxonomic study by Serizawa (1986, 1995), who treated the native lowland diploid Taraxacum in Japan as 2 species, T. platycarpum and T. maruyamanum.
AB - Diploid lowland Taraxacum classified as T. elatum, T. hondoense, T. longeappendiculatum, T. japonicum, T, maruyamanum and T. platycarpum according to Kitamura (1957) were studied cytologically. Karyotypic formulae of the 6 forms were as follows: T. platycarpum, 2n=16=2M+ 10m+4mcs; T. elatum, 2n=16=12m+4mcs: T. hondoense, 2n=16=2M+10m+4mcs; T. longeappendiculatum, 2n=16=12m+4wcs; T. japonicum, 2n=16=12m+4m cs; T. maruyamanum, 2n=16=14m+2mcs. The karyotypes from T. elatum, T. hondoense, T. longeappendiculatum, T. japonicum and T. platycarpum had similar formulae described as 2n=16=12(M+m)+4mcs. In contrast, that of T. maruyamanum was 2n=16=14w+2mcs. The karyological data support the taxonomic study by Serizawa (1986, 1995), who treated the native lowland diploid Taraxacum in Japan as 2 species, T. platycarpum and T. maruyamanum.
KW - Asteraceae
KW - Chromosome number
KW - Karyotype
KW - Meiosis
KW - Taraxacum
UR - http://www.scopus.com/inward/record.url?scp=36248979262&partnerID=8YFLogxK
U2 - 10.1508/cytologia.72.309
DO - 10.1508/cytologia.72.309
M3 - 学術論文
AN - SCOPUS:36248979262
SN - 0011-4545
VL - 72
SP - 309
EP - 317
JO - Cytologia
JF - Cytologia
IS - 3
ER -