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题名: Karyomorphological study of the Spiraea japonica complex (Rosaceae)
作者: Zhang, ZY; Sun Hang(孙航); Gu, ZJ
刊名: BRITTONIA
关键词: S. japonica complex ; karyomorphology
英文摘要: Reported in this paper is a karyomorphological study on one natural population of each of eight varieties in the Spiraea japonica complex. The interphase and mitotic prophase can be classified into the simple chromocenter type and the proximal type, respectively. The metaphase karyotypes of the eight varieties were formulated as follows: S. japonica van japonica: 2n = 18 = 14m + 2sm + 2st; S. japonica var. acuta: 2n = 18 1m + 4sm + 3st; S. japonica var. incisa: 2n = 18 = 12m + 4sm + 2st; S. japonica var. stellaris: 2n = 18 = 15m + Ism + 2st; S. japonica var. acuminata: 2n = 18 = 14m + 2sm + 2st; S. japonica var. ovalifolia: 2n = 18 = 10m + 2sm + 2st + 4t; S. japonica var. glabra: 2n = 18 = 10m + 4sm + 4st; S. japonica var. fortunei: 2n = 36 = 17m + 16sm + 3st. Karyomorphological study reveals that the chromosome numbers within the complex are stable, and that karyomorphological divergence between the varieties lies mainly in chromosome size and organization. Based on the karyomorphological data and geographical distribution of the complex, the differentiation pattern as well as evolutionary mechanism of the complex is evaluated.
出版日期: 2002-07-01
卷号: 54, 期号:3, 页码:168-174
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0007-196X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/5595
Appears in Collections:离退休_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Zhang, ZY; Sun, H; Gu, ZJ.Karyomorphological study of the Spiraea japonica complex (Rosaceae),BRITTONIA,2002,54(3):168-174
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