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Karyology of Aconitum subgenus Lycoctonum (Ranunculaceae) from China, with a report of the new base chromosome number x=6 in the genus Aconitum
Hong, Yu; Gao, Qi; Luo, Yan; Luo, Jiang-Ping; Zhang, Yu; Yuan, Qiong; Yang, Qin-Er
2016
Source PublicationNORDIC JOURNAL OF BOTANY
Volume34Issue:4Pages:441-454
AbstractIn order to gain better knowledge of the number and morphology of chromosomes in Aconitum subgen. Lycoctonum in China, 60 populations belonging to 20 species were cytologically studied. Chromosome numbers of six species (A. apetalum, A. finetianum, A. fletcheranum, A. longecassidatum, A. umbrosum and A. wangyedianense) are here reported for the first time. One species, A. fletcheranum, has 2n = 12, and thus is a diploid based on x = 6, a new base chromosome number for the genusAconitum. Most of the remaining taxa are diploid (2n = 16) based on x = 8, but five taxa (A. angustius, A. brevicalcaratum var. brevicalcaratum, A. brevicalcaratum var. parviflorum, A.chrysotrichum and A. crassiflorum) are tetraploid with 2n = 32, and one species (A. apetalum) is hexaploid with 2n = 48, the highest ploidy level currently known in the subgenus. Disregarding differences in the presence or absence and number of satellites, the karyotypes of all the 2n = 16 species are quite uniform (2n = 2m 6sm 8st), but A. novoluridum, the only species of A. sectionAlatospermum, has an intrachromosomally less asymmetric karyotype (2n = 2m 14sm), which lends further support for the primitive condition of its section as inferred from gross-morphology. Chromosomal variation in the subgenus and the relationships of some of the species are discussed.
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10151
Collection其他
Recommended Citation
GB/T 7714
Hong, Yu,Gao, Qi,Luo, Yan,et al. Karyology of Aconitum subgenus Lycoctonum (Ranunculaceae) from China, with a report of the new base chromosome number x=6 in the genus Aconitum[J]. NORDIC JOURNAL OF BOTANY,2016,34(4):441-454.
APA Hong, Yu.,Gao, Qi.,Luo, Yan.,Luo, Jiang-Ping.,Zhang, Yu.,...&Yang, Qin-Er.(2016).Karyology of Aconitum subgenus Lycoctonum (Ranunculaceae) from China, with a report of the new base chromosome number x=6 in the genus Aconitum.NORDIC JOURNAL OF BOTANY,34(4),441-454.
MLA Hong, Yu,et al."Karyology of Aconitum subgenus Lycoctonum (Ranunculaceae) from China, with a report of the new base chromosome number x=6 in the genus Aconitum".NORDIC JOURNAL OF BOTANY 34.4(2016):441-454.
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