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题名: A natural hybrid between Ligularia paradoxa and L. duciformis (Asteraceae, Senecioneae) from Yunnan, China
作者: Pan, Yuezhi1; Shi, Suhua2; null(龚洵)1, 2; Kuroda, Chiaki3
刊名: ANNALS OF THE MISSOURI BOTANICAL GARDEN
关键词: Asteracea ; ICCN Red List ; Linularia ; natural hybrid ; Senecioneae
英文摘要: A putative natural hybrid in Ligularia Cass., which is morphologically intermediate between L. paradoxa Hand-Mazz, and L. duciformis (C. Wink1) Hand.-Mazz., was found on Mt. Maoniu in northwestern Yunnan, China. We employed analyses of morphology seed vigor somatic chromosome numbers meiotic behaviour of chromosomes, inter-simple sequence repeat (ISSR) markers and L. duciformis. Examination of morphological charcters demonstrated the intermediey of the putative natural hybrid between L. paradoxa and L. duciformis. Seed germination of the putative natural hybrid was absent and no embryo was found in seeds of the putative natural hybrid. The meiotic behaviour of the putative natural hybrid was abnormal. Among 10 ISSR primers that we tested in all three taxa four primers produced different ISSr markers between the putative parents. The putative natural hybrid shared all ISSR markers of the putative parents. However, no taxon-specific band existed in the samples of the putative natural hybrid. The data from ISSR markers are concordant with morphology in implicating L. paradoxa and L. duciformis as paraents of the putative natural hybrid. Ligularia paradoxa was determined as the female parent of this natural hybrid by nucleotide sequence from the chloroplast trnL-F region. Therefore, this taxon is confirmed to be a natural hybrid between L. paradoxa and L. ducciformis and is described herein.
出版日期: 2008
卷号: 95, 期号:3, 页码:487-494
DOI标识: 10.3417/2006034
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0026-6493
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2397
Appears in Collections:资源植物与生物技术所级重点实验室_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
2.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China
3.Rikkyo Univ, Dept Chem, Toshima Ku, Tokyo 1718501, Japan

Recommended Citation:
Pan, Y; Shi, S; Gong, X; Kuroda, C.A natural hybrid between Ligularia paradoxa and L. duciformis (Asteraceae, Senecioneae) from Yunnan, China,ANNALS OF THE MISSOURI BOTANICAL GARDEN,2008,95(3):487-494
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