Pollen morphology of the tribe Rhinantheae (Orobanchaceae) and its systematic significances
Lu, L.; Wang, H.; Blackmore, S.; Li, D. Z.; Dong, L. N.
2007
发表期刊PLANT SYSTEMATICS AND EVOLUTION
ISSN0378-2697
卷号268期号:1-4页码:177-198
摘要Pollen morphology of 36 species representing 14 genera within the tribe Rhinantheae in the family Orobanchaceae was studied and illustrated with light microscopy (LM) and scanning electron microscopy (SEM). Five major pollen types were recognized on the basis of exine ornamentation. Within these major types, minor types (subtypes) were distinguished based on exine surface pattern, size, shape, amb form, colpi and colpus membrane. These types and subtypes are as follows: type I. retipilate: subtype Ia. regular retipilate: (1) pollen size < 27 mu m, (2) pollen size > 27 mu m, subtype Ib. irregular retipilate; type II. verrucate: subtype IIa. macro-verrucate, subtype IIb. verrucate, subtype IIc. sparse verrucate; type III. retirugulate; type IV. granulate; type V. microreticulate. A key to pollen morphology of genera studied within the Rhinantheae was made based on pollen morphology from our study and earlier work. Combining with other sources of information on the Rhinantheae, the systematic relationships of this tribe are discussed. Rhinantheae pollen displays considerable variation between genera and species, with taxonomically significant characters at genus and species level. Palynological characteristics provide evidence for interpreting the conflicting views concerning the "Pterygiella Complex". The evolutionary trend in exine sculpture of Rhinantheae could be proposed, namely that retipilate sculpturing which is the most widespread type is more primitive than the other types (such as foveolate, granulate, regulate, reticulate, retirugulate and verrucate). The pollen data in present study and the view of Hong (1986), as well as the molecular data from Bennett and Mathews (2006) indicated that Asia and related regions were likely to the origin centre of the tribe Rhinantheae.
关键词Rhinantheae Orobanchaceae Scrophulariaceae Pollen Exine Sculpture Evolutionary Trend Systematic Significances
收录类别SCI
语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2675
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, Kunming Inst Bot, Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
3.Royal Bot Gardens, Edinburgh, Midlothian, Scotland
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GB/T 7714
Lu, L.,Wang, H.,Blackmore, S.,et al. Pollen morphology of the tribe Rhinantheae (Orobanchaceae) and its systematic significances[J]. PLANT SYSTEMATICS AND EVOLUTION,2007,268(1-4):177-198.
APA Lu, L.,Wang, H.,Blackmore, S.,Li, D. Z.,&Dong, L. N..(2007).Pollen morphology of the tribe Rhinantheae (Orobanchaceae) and its systematic significances.PLANT SYSTEMATICS AND EVOLUTION,268(1-4),177-198.
MLA Lu, L.,et al."Pollen morphology of the tribe Rhinantheae (Orobanchaceae) and its systematic significances".PLANT SYSTEMATICS AND EVOLUTION 268.1-4(2007):177-198.
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