Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands

Abstract Obligate out-breeding plants are considered relatively disadvantageous comparing with self-breeding plants when colonizing oceanic islets following long-distance dispersal owing to mate and pollinator limitation. The rarity of heterostyly, a typical out-breeding system, on oceanic islands s...

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Autores principales:	Yuanqing Xu, Zhonglai Luo, Shaoxiong Gao, Dianxiang Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Pollination Niche Guettarda Speciosa Heteromorphic Self-incompatibility Heterostylous Plants Morph Ratio Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5d503613bf294897ab9b425dad07c7aa
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spelling	oai:doaj.org-article:5d503613bf294897ab9b425dad07c7aa2021-12-02T15:08:27ZPollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands10.1038/s41598-018-32143-52045-2322https://doaj.org/article/5d503613bf294897ab9b425dad07c7aa2018-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-32143-5https://doaj.org/toc/2045-2322Abstract Obligate out-breeding plants are considered relatively disadvantageous comparing with self-breeding plants when colonizing oceanic islets following long-distance dispersal owing to mate and pollinator limitation. The rarity of heterostyly, a typical out-breeding system, on oceanic islands seems a good proof. However, a heterostylous plant, Guettarda speciosa, is widely distributed on most tropical oceanic islets. Our research demonstrates that its heteromorphic self-incompatibility, plus herkogamy and long flower tube make it rely on pollinator for sexual reproduction, which is generally considered “disadvantageous” for island colonization. We hypothesize that available pollination niche will be a key factor for its colonization on islands. Our studies on remote coral islands show that G. speciosa has built equilibrium population with a 1:1 morph ratio. It could obtain pollination niche from the hawkmoth Agrius convolvuli. A pioneer island plant Ipomoea pes-caprae sustain the pollination niche by providing trophic resource for the larvae of the pollinator. Geographic pattern drawn by Ecological Niche Modelling further indicates the interaction between G. speciosa, A. convolvuli and I. pes-caprae can be bounded on those remote oceanic islands, explaining the colonization of G. speciosa distylous population. These findings demonstrated obligate out-breeding system could be maintained to acclimatize long distance dispersal, if the pollination niche is available.Yuanqing XuZhonglai LuoShaoxiong GaoDianxiang ZhangNature PortfolioarticlePollination NicheGuettarda SpeciosaHeteromorphic Self-incompatibilityHeterostylous PlantsMorph RatioMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Pollination Niche Guettarda Speciosa Heteromorphic Self-incompatibility Heterostylous Plants Morph Ratio Medicine R Science Q
spellingShingle	Pollination Niche Guettarda Speciosa Heteromorphic Self-incompatibility Heterostylous Plants Morph Ratio Medicine R Science Q Yuanqing Xu Zhonglai Luo Shaoxiong Gao Dianxiang Zhang Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
description	Abstract Obligate out-breeding plants are considered relatively disadvantageous comparing with self-breeding plants when colonizing oceanic islets following long-distance dispersal owing to mate and pollinator limitation. The rarity of heterostyly, a typical out-breeding system, on oceanic islands seems a good proof. However, a heterostylous plant, Guettarda speciosa, is widely distributed on most tropical oceanic islets. Our research demonstrates that its heteromorphic self-incompatibility, plus herkogamy and long flower tube make it rely on pollinator for sexual reproduction, which is generally considered “disadvantageous” for island colonization. We hypothesize that available pollination niche will be a key factor for its colonization on islands. Our studies on remote coral islands show that G. speciosa has built equilibrium population with a 1:1 morph ratio. It could obtain pollination niche from the hawkmoth Agrius convolvuli. A pioneer island plant Ipomoea pes-caprae sustain the pollination niche by providing trophic resource for the larvae of the pollinator. Geographic pattern drawn by Ecological Niche Modelling further indicates the interaction between G. speciosa, A. convolvuli and I. pes-caprae can be bounded on those remote oceanic islands, explaining the colonization of G. speciosa distylous population. These findings demonstrated obligate out-breeding system could be maintained to acclimatize long distance dispersal, if the pollination niche is available.
format	article
author	Yuanqing Xu Zhonglai Luo Shaoxiong Gao Dianxiang Zhang
author_facet	Yuanqing Xu Zhonglai Luo Shaoxiong Gao Dianxiang Zhang
author_sort	Yuanqing Xu
title	Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
title_short	Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
title_full	Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
title_fullStr	Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
title_full_unstemmed	Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
title_sort	pollination niche availability facilitates colonization of guettarda speciosa with heteromorphic self-incompatibility on oceanic islands
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/5d503613bf294897ab9b425dad07c7aa
work_keys_str_mv	AT yuanqingxu pollinationnicheavailabilityfacilitatescolonizationofguettardaspeciosawithheteromorphicselfincompatibilityonoceanicislands AT zhonglailuo pollinationnicheavailabilityfacilitatescolonizationofguettardaspeciosawithheteromorphicselfincompatibilityonoceanicislands AT shaoxionggao pollinationnicheavailabilityfacilitatescolonizationofguettardaspeciosawithheteromorphicselfincompatibilityonoceanicislands AT dianxiangzhang pollinationnicheavailabilityfacilitatescolonizationofguettardaspeciosawithheteromorphicselfincompatibilityonoceanicislands
_version_	1718388123357937664

Pollination niche availability facilitates colonization of Guettarda speciosa with heteromorphic self-incompatibility on oceanic islands

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