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Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)
Wang, Menglin1,2; Huang, Shuyin; Li, Manru1; McKey, Doyle3; Zhang, Ling
2019
Source PublicationJOURNAL OF TROPICAL ECOLOGY
ISSN0266-4674
Volume35Issue:1Pages:34-42
Abstract

Staminodes are sterile stamens that produce no pollen, exhibit diverse structures and perform various functions. Flowers of Phanera yunnanensis possess three fertile stamens with large anthers and long filaments, and seven staminodes with tiny anthers and short filaments. To investigate the adaptive significance of staminodes in this species, we studied effects of staminode removal on pollen removal and deposition, flower visitation rate and fruit set in Xishuangbanna, south-western China. Four species of nectar-foraging pollinators visited flowers, mostly Amegilla zonata and Apis cerana (2.80 +/- 0.15 and 1.76 +/- 0.41 visits h(-1) per flower, respectively). Staminode removal did not affect fruit set, but increased visitation by A. cerana by 2.6-fold, reduced visitation by A. zonata by 68% and increased the pollen removal rate for both pollinators (all effects were significant). Staminode removal significantly reduced pollen deposition rate for A. zonata, but not for A. cerana. These results suggest that the staminodes of P. yunnanensis filter which insects act as pollinators and affect pollen removal and deposition rates. By reducing pollen removal rates, staminodes may implement a pollen-dispensing schedule that spreads pollen dispersal from individual flowers over multiple pollinators. By altering pollen deposition rates, staminodes may influence reproductive fitness in other ways.

KeywordFemale Reproductive Success Floral Biology Leguminosae Caesalpinioideae Breeding Systems Pollinated Tree Penstemon Population Evolution Ecology L.
Subject AreaEnvironmental Sciences & Ecology
DOI10.1017/S0266467418000433
Indexed BySCI
Language英语
WOS IDWOS:000458501500005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11231
Collection动植物关系组
Affiliation1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Okinawa Inst Sci & Technol Grad Univ, Onna Son, Okinawa 9040495, Japan
4.Univ Paul Valery Montpellier 3, Univ Montpellier, CNRS, CEFE,EPHE,IRD, 1919 Route Mende, F-34293 Montpellier, France
Recommended Citation
GB/T 7714
Wang, Menglin,Huang, Shuyin,Li, Manru,et al. Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)[J]. JOURNAL OF TROPICAL ECOLOGY,2019,35(1):34-42.
APA Wang, Menglin,Huang, Shuyin,Li, Manru,McKey, Doyle,&Zhang, Ling.(2019).Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae).JOURNAL OF TROPICAL ECOLOGY,35(1),34-42.
MLA Wang, Menglin,et al."Staminodes influence pollen removal and deposition rates in nectar-rewarding self-incompatible Phanera yunnanensis (Caesalpinioideae)".JOURNAL OF TROPICAL ECOLOGY 35.1(2019):34-42.
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