青藏高原八种菊科植物染色体核型报道

doi:10.7677/ ynzwyj201313034

Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 361-366.DOI: 10.7677/ ynzwyj201313034

青藏高原八种菊科植物染色体核型报道

孟盈1、2、3, 杨永平1、2、3

1 中国科学院昆明植物研究所生物多样性与生物地理学重点实验室, 云南昆明 650201; 2 中国科学院昆明植物研究所
西南野生生物种质资源库, 云南昆明 650201; 3 中国科学院青藏高原研究所昆明部, 云南昆明 650201

收稿日期:2013-03-14 出版日期:2013-05-25 发布日期:2013-04-10
基金资助:
科技部科技基础性工作专项重点项目(2007FY110100); 国家自然科学基金项目(31270273, 41271058); 国家重点基
础研究发展计划(2010CB951704); 中国科学院生命科学领域基础前沿专项项目(KSCX2-EW-J-24)

Chromosome Atlas of Eight Asteraceae Species from the Qinghai-Tibet Plateau

MENG Ying-1、2、3, YANG Yong-Ping-1、2、3

1 Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
2 Plant Germplasm and Genomics Center, China Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy
of Sciences, Kunming 650201, China; 3 Institute of Tibetan Plateau Research at Kunming,
Chinese Academy of Sciences, Kunming 650201, China

Received:2013-03-14 Online:2013-05-25 Published:2013-04-10
Supported by:
科技部科技基础性工作专项重点项目(2007FY110100); 国家自然科学基金项目(31270273, 41271058); 国家重点基
础研究发展计划(2010CB951704); 中国科学院生命科学领域基础前沿专项项目(KSCX2-EW-J-24)

摘要/Abstract

摘要：

对产自青藏高原的8 种菊科植物进行染色体核型分析, 其中6 种为首次报道。其核型公式和不对称
性如下: 葵花大蓟Cirsium souliei 2n =34m, 1A; 绵刺头菊Cousinia thomsonii 2n =26=22m+4sm, 2A; 小还阳
参Crepis minuta 2n =14=10m+4sm, 2A; 缘毛橐吾Ligularia liatroides 2n =60=32m+28sm, 2A; 肉叶雪兔子
Saussurea thomsonii 2n =36=22m+14sm, 2A; 西藏蒲公英Taraxacum tibetanum 2n =16=10m+6sm, 1A; 其余
2 种的染色体数目及核型与前人的报道一致。

关键词: 染色体, 核型, 菊科, 青藏高原

Abstract:

The chromosomes of eight species of the family Asteraceae from the Qinghai-Tibet Plateau were investigated. Chromosome numbers and karyotypes of six species were presented in this paper for the first time. Based on
Stebbin爷s classification, the karyotype formulas and asymmetry were enumerated as follows: Cirsium souliei 2n =34m, 1A; Cousinia thomsonii 2n =26=22m+4sm, 2A; Crepis minuta 2n =14=10m+4sm, 2A; Ligularia liatroides
2n =60=32m+28sm, 2A; Saussurea thomsonii 2n = 36 = 22m+14sm, 2A; Taraxacum tibetanum 2n = 16 = 10m+6sm, 1A. The chromosome numbers and karyotypes of other two species reconfirmed previous reports.

Key words: Chromosome, Karyotype, Asteraceae, Qinghai-Tibet Plateau

中图分类号:

Q 943

孟盈1、2、3, 杨永平1、2、3. 青藏高原八种菊科植物染色体核型报道[J]. Plant Diversity, 2013, 35(3): 361-366.

MENG Ying-, YANG Yong-Ping. Chromosome Atlas of Eight Asteraceae Species from the Qinghai-Tibet Plateau[J]. Plant Diversity, 2013, 35(3): 361-366.

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青藏高原八种菊科植物染色体核型报道

Chromosome Atlas of Eight Asteraceae Species from the Qinghai-Tibet Plateau

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