Dataset Information

Dataset of pollination traits in Fabales.

ABSTRACT: The data presented in this paper is supporting the research article "Reconstructing an historical pollination syndrome: keel flowers" (Aygören Uluer et al., 2022). We present a dataset containing information on number of species, geographic distribution, floral type (keeled or not), presence or absence of fused petals, floral symmetry, presence or absence of a pentamerous corolla (petals+petaloid sepals in Polygalaceae), androecium type, presence or absence of enclosed reproductive organs, presence or absence of three distinct petal types (petals+ petaloid sepals in Polygalaceae), flower size, corolla size (i.e., in open flower) and/or filament size (i.e., entire filament size particularly in subfamily Caesalpinioideae), flower colour, UV reflectance, habit, height, inflorescence type and inflorescence size for 758 Fabales genera. The information was obtained from hundreds of appropriate, previously published sources. This the largest morphological dataset constructed for Fabales to date, and the data presented in this article can be used for morphology, biogeography, ancestral state, ancestral area analyses of any Fabales clades.

SUBMITTER: Aygoren Uluer D

PROVIDER: S-EPMC9352444 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Dataset of pollination traits in Fabales.

Aygören Uluer Deniz D Forest Félix F Hawkins Julie A JA

Data in brief 20220722

The data presented in this paper is supporting the research article "Reconstructing an historical pollination syndrome: keel flowers" (Aygören Uluer et al., 2022). We present a dataset containing information on number of species, geographic distribution, floral type (keeled or not), presence or absence of fused petals, floral symmetry, presence or absence of a pentamerous corolla (petals+petaloid sepals in Polygalaceae), androecium type, presence or absence of enclosed reproductive organs, prese ...[more]

PMID: 35935709

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Project description:Background and aimsPollen-collecting bees are among the most important pollinators globally, but are also the most common pollen thieves and can significantly reduce plant reproduction. The pollination efficiency of pollen collectors depends on the frequency of their visits to female(-phase) flowers, contact with stigmas and deposition of pollen of sufficient quantity and quality to fertilize ovules. Here we investigate the relative importance of these components, and the hypothesis that floral and inflorescence characteristics mediate the pollination role of pollen collection by bees.MethodsFor ten Aloe species that differ extensively in floral and inflorescence traits, we experimentally excluded potential bird pollinators to quantify the contributions of insect visitors to pollen removal, pollen deposition and seed production. We measured corolla width and depth to determine nectar accessibility, and the phenology of anther dehiscence and stigma receptivity to quantify herkogamy and dichogamy. Further, we compiled all published bird-exclusion studies of aloes, and compared insect pollination success with floral morphology.Key resultsSpecies varied from exclusively insect pollinated, to exclusively bird pollinated but subject to extensive pollen theft by insects. Nectar inaccessibility and strong dichogamy inhibited pollination by pollen-collecting bees by discouraging visits to female-phase (i.e. pollenless) flowers. For species with large inflorescences of pollen-rich flowers, pollen collectors successfully deposited pollen, but of such low quality (probably self-pollen) that they made almost no contribution to seed set. Indeed, considering all published bird-exclusion studies (17 species in total), insect pollination efficiency varied significantly with floral shape.ConclusionsSpecies-specific floral and inflorescence characteristics, especially nectar accessibility and dichogamy, control the efficiency of pollen-collecting bees as pollinators of aloes.

Dataset Information

Dataset of pollination traits in Fabales.

Publications

Dataset of pollination traits in Fabales.

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