The functional significance of a stigma color polymorphism in Acer pictum subsp mono (Aceraceae)

doi:10.1093/jpe/rtv018

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	The functional significance of a stigma color polymorphism in Acer pictum subsp mono (Aceraceae)
	Yang, Zhi-Qun ; Zhang, Da-Yong ; Bai, Wei-Ning
刊名	JOURNAL OF PLANT ECOLOGY
	2015
卷号	8 期号:2 页码:166-172
关键词	Acer female fitness stigma color polymorphism stigma performance
ISSN号	1752-9921
DOI	10.1093/jpe/rtv018
文献子类	Article
英文摘要	Aims Exploring the characteristics and function of a flower color polymorphism contributes to our understanding of floral evolution in angiosperms. However, little information is available on stigma color polymorphisms in flowering plants despite their important functional role in plant reproduction. Methods We studied a stigma color polymorphism at the individual level in Acer pictum subsp. mono (aka A. mono) by investigating stigma-color morph proportion and comparing stigma performance and components of female fitness (pollen adhesion, pollen germination, fruit set, seed set and fruit weight) between the two morphs (red and greenish-yellow stigma) within natural populations at Dongling Mountain in the north of China. In the flowering period, we conducted hand pollination in natural populations and then made microscopic observations using the aniline blue fluorescence method. Important Findings Individuals in the studied populations did not change their stigma color between years, and flowers produced by a single tree were uniform in their stigma color. This strongly suggests that stigma color variation is genetically controlled. The percentage of the red stigma flowers with germinated pollen grains was significantly higher than that of the greenish-yellow stigma flowers when hand pollination was conducted in the early flowering period, but not so in the late flowering period. There was no significant difference in the percentage of flowers with pollen adhesion to the stigma between the two morphs. Fruit set of the red morph was significantly higher than that of the greenish-yellow morph. Our findings suggest that the red morph may be more advantageous for pollen germination and fruit set than the greenish-yellow morph, which may provide a functional explanation for the high incidence of the red stigma morph in the studied populations. Alternative explanations for the stigma color polymorphism are discussed to stimulate further work.
学科主题	Plant Sciences ; Ecology ; Forestry
电子版国际标准刊号	1752-993X
出版地	OXFORD
WOS关键词	FLOWER-COLOR ; POLLINATOR ATTRACTION ; REPRODUCTIVE SUCCESS ; SWEET CHERRY ; SELECTION ; CONSEQUENCES ; PLANT ; L. ; TEMPERATURE ; POPULATIONS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000354703600010
资助机构	National Natural Science Foundation of China [41371073, 31421063]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25648]
专题	系统与进化植物学国家重点实验室
作者单位	1.Zhang, Da-Yong 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolut, Beijing 100093, Peoples R China 3.[Yang, Zhi-Qun 4.Beijing Normal Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Coll Life Sci, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhi-Qun,Zhang, Da-Yong,Bai, Wei-Ning. The functional significance of a stigma color polymorphism in Acer pictum subsp mono (Aceraceae)[J]. JOURNAL OF PLANT ECOLOGY,2015,8(2):166-172.
APA	Yang, Zhi-Qun,Zhang, Da-Yong,&Bai, Wei-Ning.(2015).The functional significance of a stigma color polymorphism in Acer pictum subsp mono (Aceraceae).JOURNAL OF PLANT ECOLOGY,8(2),166-172.
MLA	Yang, Zhi-Qun,et al."The functional significance of a stigma color polymorphism in Acer pictum subsp mono (Aceraceae)".JOURNAL OF PLANT ECOLOGY 8.2(2015):166-172.