ArticleAnnals of botany2016
Seasonal variation in the mating system of a selfing annual with large floral displays.
Article in Annals of botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 33 citations in OpenAlex.
- Evaluating Kinship Estimation Methods for Reduced-Representation SNP Data in Non-model Species.Molecular ecology resources · 2025Article
- Evolutionary consequences of flowering-pollinator asynchrony: the case of a floral oil-producing plant and its oil-collecting bees.Annals of botany · 2025Article
- Habitat effects on reproductive phenotype, pollinator behavior, fecundity, and mating outcomes of a bumble bee-pollinated herb.American journal of botany · 2022Article
- Do annual and perennial populations of an insect-pollinated plant species differ in mating system?Annals of botany · 2021Article
- Selfing rates vary with floral display, pollinator visitation and plant density in natural populations of Mimulus ringens.Journal of evolutionary biology · 2021Article
- How and When Does Outcrossing Occur in the Predominantly Selfing SpeciesFrontiers in plant science · 2021Article
- Plant-pollinator interactions along the pathway to paternity.Annals of botany · 2019Review
- A high-throughput amplicon-based method for estimating outcrossing rates.Plant methods · 2019Article
- The interaction between sex-specific selection and local adaptation in species without separate sexes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Article
- Equipped for Migrations Across High Latitude Regions? Reduced Spur Length and Outcrossing Rate in a BiennialFrontiers in genetics · 2018Article
- Ecological correlates and genetic consequences of evolutionary transitions from distyly to homostyly.Annals of botany · 2017Article
- Uncertain pollination environment promotes the evolution of a stable mixed reproductive system in the self-incompatible Hypochaeris salzmanniana (Asteraceae).Annals of botany · 2017Article
- Seed set variation in wildEcology and evolution · 2016Article
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Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsFlowering plants display considerable variation in mating system, specifically the relative frequency of cross- and self-fertilization. The majority of estimates of outcrossing rate do not account for temporal variation, particularly during the flowering season. Here, we investigated seasonal variation in mating and fertility in Incarvillea sinensis (Bignoniaceae), an annual with showy, insect-pollinated, 'one-day' flowers capable of delayed selfing. We examined the influence of several biotic and abiotic environmental factors on day-to-day variation in fruit set, seed set and patterns of mating.
methodsWe recorded daily flower number and pollinator abundance in nine 3 × 3-m patches in a population at Mu Us Sand land, Inner Mongolia, China. From marked flowers we collected data on daily fruit and seed set and estimated outcrossing rate and biparental inbreeding using six microsatellite loci and 172 open-pollinated families throughout the flowering period. KEY
resultsFlower density increased significantly over most of the 50-d flowering season, but was associated with a decline in levels of pollinator service by bees, particularly on windy days. Fruit and seed set declined over time, especially during the latter third of the flowering period. Multilocus estimates of outcrossing rate were obtained using two methods (the programs MLTR and BORICE) and both indicated high selfing rates of ∼80 %. There was evidence for a significant increase in levels of selfing as the flowering season progressed and pollinator visitation declined. Biparental inbreeding also declined significantly as the flowering season progressed.
conclusionsTemporal variation in outcrossing rates may be a common feature of the mating biology of annual, insect-pollinated plants of harsh environments but our study is the first to examine seasonal mating-system dynamics in this context. Despite having large flowers and showy floral displays, I. sinensis attracted relatively few pollinators. Delayed selfing by corolla dragging largely explains the occurrence of mixed mating in I. sinensis, and this mode of self-fertilization probably functions to promote reproductive assurance when pollinator service is limited by windy environmental conditions and competition from co-occurring flowering plants.
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