Karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae) of the order Huerteales and their phylogenetic implications

doi:10.1111/j.1759-6831.2009.00036.x

	Karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae) of the order Huerteales and their phylogenetic implications
	Yang, Jing; Wu, Jiang-Chong; Gu, Zhi-Jian
	2009-07-01
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
卷号	47 期号:4 页码:291-296
摘要	The karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae), namely Dipentodon sinicus, Perrottetia racemosa, and Tapiscia sinensis, was investigated in the present study. Recent molecular research has discovered close relationships among these three genera, which has led to the establishment of the order Huerteales with Perrottetia being placed in Dipentodontaceae. Herein we report the chromosome numbers of D. sinicus and P racemosa for the first time, and present their karyotype formulas as 2n = 34 = 22 sm + 12 st (D. sinicus), 2n = 20 = 11 m + 9 sm (P. racemosa), and 2n = 30 = 22 m(2SAT) + 8sm (T. sinensis). Asymmetry of their karyotypes is categorized to be Type 3B in D. sinicus, Type 2A in P. racemosa, and Type 2A in T. sinensis. Each of the species shows special cytological features. Compared with Perrottetia, Dipentodon has a different basic chromosome number, a higher karyotype asymmetry, and different karyomorphology of its interphase nuclei, mitotic prophase, and metaphase. Thus, on the basis of these results, we have reservations regarding the suggestion of placing Dipentodon and Perrottetia together in the family Dipentodontaceae.
关键词	Chromosome Number Dipentodon Karyomorphology Perrottetia Phylogenetic Relationship Tapiscia
DOI	10.1111/j.1759-6831.2009.00036.x
收录类别	SCI
语种	英语
WOS记录号	WOS:000268609700004
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/23887
专题	资源植物与生物技术所级重点实验室
作者单位	Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jing,Wu, Jiang-Chong,Gu, Zhi-Jian. Karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae) of the order Huerteales and their phylogenetic implications[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(4):291-296.
APA	Yang, Jing,Wu, Jiang-Chong,&Gu, Zhi-Jian.(2009).Karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae) of the order Huerteales and their phylogenetic implications.JOURNAL OF SYSTEMATICS AND EVOLUTION,47(4),291-296.
MLA	Yang, Jing,et al."Karyomorphology of three species in Dipentodon (Dipentodontaceae), Perrottetia (Celastraceae), and Tapiscia (Tapisciaceae) of the order Huerteales and their phylogenetic implications".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.4(2009):291-296.

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