Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)

doi:10.1111/j.1759-6831.2009.00026.x

	Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)
	Chen, Gao 2,3; Sun, Wei-Bang2 ; Sun, Hang1
通讯作者	hsun@mail.kib.ac.cn
	2009-05-01
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	0529-1526
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
学科领域	Plant Sciences
DOI	10.1111/j.1759-6831.2009.00026.x
收录类别	SCI
语种	英语
WOS记录号	WOS:000267179800006
引用统计
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
推荐引用方式 GB/T 7714	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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