Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)
Chen, Gao2,3; Sun, Wei-Bang2; Sun, Hang1
2009-05-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN0529-1526
卷号47期号:3页码:231-236
摘要Buddleja macrostachya (Buddlejaceae) is a widespread shrub native to the Sino-Himalayan mountains and beyond. It has been found to occur at two ploidy levels, hexaploid, 2n=6x=114 and dodecaploid, 2n=12x=228. To determine if morphological characters might be used as indicators of ploidy levels, we measured floral and fruit length, relative and absolute leaf size, trichome density on both leaf surfaces, and stomatal density and length in different populations of B. macrostachya. In general, flower and fruit length, absolute leaf size, and stomatal length increased with an increase at ploidy level (P<0.01), whereas adaxial cell and stomatal density decreased with an increase at ploidy level (P<0.01). We found no conspicuous differences in relative leaf size (P>0.05) in different populations. Other characters studied such as trichome type, cuticular membrane and ornamentation of stomata, cell and stomatal shape, and anticlinal wall pattern were quite constant in this species. Thus it appears that flower and fruit length, absolute leaf size, and stomatal frequency and length can be used to distinguish hexaploid from dodecaploid cytotypes either in the field or in herbarium specimens.
关键词Buddleja Macrostachya Dodecaploid Hexaploid Leaf Epidermis Ploidy Level Stomata
资助信息National Natural Science Foundation of China (NSFC) [30625004, 40771073]; Yunnan Natural Science Foundation [2008CC013]
学科领域Plant Sciences
DOI10.1111/j.1759-6831.2009.00026.x
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000267179800006
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/3002
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Kunming Bot Garden, Kunming Inst Bot, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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Chen, Gao,Sun, Wei-Bang,Sun, Hang. Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(3):231-236.
APA Chen, Gao,Sun, Wei-Bang,&Sun, Hang.(2009).Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae).JOURNAL OF SYSTEMATICS AND EVOLUTION,47(3),231-236.
MLA Chen, Gao,et al."Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.3(2009):231-236.
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