EVOLUTION OF ANGIOSPERM POLLEN. 7. NITROGEN-FIXING CLADE

doi:10.3417/2019337

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	EVOLUTION OF ANGIOSPERM POLLEN. 7. NITROGEN-FIXING CLADE
	Jiang, Wei 1,6; He, Hua-Jie 5; Lu, Lu 1,3,4; Burgess, Kevin S.2; Wang, Hong1 ; Li, De-Zhu1,5
刊名	ANNALS OF THE MISSOURI BOTANICAL GARDEN
	2019-07-01
卷号	104 期号:2 页码:171-229
关键词	Character evolution Cucurbitales Fabales Fagales nitrogen-fixing clade pollen morphology Rosales systematic significance
ISSN号	0026-6493
DOI	10.3417/2019337
通讯作者	Wang, Hong(wanghong@mail.kib.ac.cn) ; Li, De-Zhu(dzl@mail.kib.ac.cn)
英文摘要	Nitrogen-fixing symbiosis in root nodules is known in only 10 families, which are distributed among a clade of four orders and delimited as the nitrogen-fixing clade. As the seventh in a series that examines pollen morphological distribution and evolution in the angiosperms, this paper focuses on pollen morphological character states of the nitrogen-fixing clade. To illustrate the palynological diversity of the clade, we first examined pollen grains from 26 species with light electron, scanning electron, and transmission electron microscopy. Second, we used a reduced data matrix from Li et al. (2015) to reconstruct a maximum likelihood tree and then optimized 18 pollen character states onto the tree using Fitch parsimony, maximum likelihood, and hierarchical Bayesian inference. Finally, 12 plesiomorphic states for the nitrogen-fixing clade were inferred unambiguously under all methods, and more than 40 clades (or lineages) at or above familial level were characterized by unambiguous pollen character state changes in at least one of the optimizations. We found a number of evolutionary trends for changes in pollen character states. These include increasing grain size, increasing aperture number accompanied by concomitant changes in aperture position (from equatorial to global) and aperture shape (from colpate to colporate), and increasing complexity of tectum ornamentation. There was a strong correlation between some pollen characters (prolate shape class, lobe outline in polar view, colpate ectoaperture, lalongate and lolongate endoaperture, absent supratectal element, reticulate tectum) and insect pollination, while other pollen characters-simple aperture structure, porate ectoaperture, circular endoaperture, present and gemmate or echinate supratectal element, and imperforate tectum-were strongly correlated with wind pollination. In addition, rugulate tectum was significantly correlated with shrub habit while larger pollen size was significantly correlated with vine habit; the helophytic habitat was significantly correlated with having two apertures. Our study provides rich evidence for the phylogenetic significance of pollen morphological diversity in the nitrogen-fixing clade.
WOS研究方向	Plant Sciences
语种	英语
WOS记录号	WOS:000477018400001
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/68199]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Wang, Hong; Li, De-Zhu
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 2.Columbus State Univ, Univ Syst Georgia, Dept Biol, Coll Letters & Sci, Columbus, GA 31907 USA 3.Kunming Med Univ, Yunnan Key Lab Pharmacol Nat Prod, Kunming 650500, Yunnan, Peoples R China 4.Kunming Med Univ, Sch Pharmaceut Sci, Kunming 650500, Yunnan, Peoples R China 5.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 6.Yunnan Acad Agr Sci, Ind Crops Res Inst, Kunming 650200, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Wei,He, Hua-Jie,Lu, Lu,et al. EVOLUTION OF ANGIOSPERM POLLEN. 7. NITROGEN-FIXING CLADE[J]. ANNALS OF THE MISSOURI BOTANICAL GARDEN,2019,104(2):171-229.
APA	Jiang, Wei,He, Hua-Jie,Lu, Lu,Burgess, Kevin S.,Wang, Hong,&Li, De-Zhu.(2019).EVOLUTION OF ANGIOSPERM POLLEN. 7. NITROGEN-FIXING CLADE.ANNALS OF THE MISSOURI BOTANICAL GARDEN,104(2),171-229.
MLA	Jiang, Wei,et al."EVOLUTION OF ANGIOSPERM POLLEN. 7. NITROGEN-FIXING CLADE".ANNALS OF THE MISSOURI BOTANICAL GARDEN 104.2(2019):171-229.