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opencc-zeroJun 2022View details →

Structural anther mimics improve reproductive success through dishonest signalling that enhances both attraction and the morphological fit of pollinators with flowers

Numerous studies have identified traits associated with anther mimicry, however, the processes underlying floral deception remains poorly documented for these structures. We studied the importance of pollinator attraction and mechanical fit of anther mimics in Tritonia laxifolia (Iridaceae) and their relative contributions to reproductive success. To determine anther mimics role in pollinator attraction, we offered bees' binary choices to flowers painted with UV absorbent and reflecting paint. We also conducted preference experiments between flowers with excised anther mimics and unmanipulated controls, from which mechanical fit was assessed by allowing single visits. Anther mimics effects on female reproductive success was determined using similar treatments, but on rooted plants. Bees preferred UV absorbent over UV reflecting anther mimics. Bees did not discriminate between flowers with and without three-dimensional anther mimics. Single visits resulted in more pollen deposition on unmanipulated controls over flowers with their anther mimics excised, which was directly linked to pollen-collecting behaviour. Controls with unmanipulated anther mimics had higher seed set than those with their anther mimics excised. This study provides insights into pollinator-mediated selection on deceptive floral signals and shows that three-dimensional anther mimics increases reproductive success through both attraction and pollen-collecting behaviours.

zenodo36/100

Morphological and phenological variation of flower colour morphs in a wild population of Opuntia streptacantha (Cactaceae)

[ESP] Este repositorio contiene archivos .csv y .r, de los datos se utilizaron para el análisis estadístico del artículo de Manzanarez-Villasana y Mandujano en Plant Ecology and Evolution ( <a href="https://doi.org/10.5091/plecevo.112250" target="_blank" rel="noopener">https://doi.org/10.5091/plecevo.112250</a>) [ENG] This repository contains .csv and .r files of the data used for the statistical analysis of the article by Manzanarez-Villasana and Mandujano in Plant Ecology and Evolution (<a href="https://doi.org/10.5091/plecevo.112250" target="_blank" rel="noopener">https://doi.org/10.5091/plecevo.112250</a>).

opencc-by-4.0May 2024View details →

publicJun 2022View details →

Structural anther mimics improve reproductive success through dishonest signalling that enhances both attraction and the morphological fit of pollinators with flowers

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publicAug 2025View details →

Data from: Pollinator and flower morphology interact to influence pollen receipt

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publicOct 2025View details →

Data and code from: Widespread evolution of poricidal flowers: A striking example of morphological convergence across flowering plants

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publicOct 2025View details →

Data from: Floral spatial morphological characteristics preferences facilitate mating and predation in flower-visiting spiders

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opennotspecifiedNov 2023View details →

FIGURE 4. Sesamothamnus leistneri, flower morphology. A in A new species of Sesamothamnus (Pedaliaceae) from Namibia and Angola

FIGURE 4. Sesamothamnus leistneri, flower morphology. A. Inflorescence showing one open flower, several flowers in different stages of development, and persistent styles (whitish, tipping blackish ovaries) of faded flowers following shedding of the corolla. B. Flowers, open and in bud; note both stamens and stigma positioned in mouth of the corolla tube, also the lack of a spur at the base of the tube. C. Flower showing style with bilobed stigma exserted about 10 mm from the mouth of the corolla tube. D. Distal part of corolla tube opened out to show the yellow inner surface of the tube, white filaments, and anthers positioned at the level of the corolla mouth. Photographs by W. Swanepoel (A, B, D) and A.E. van Wyk (C).

Fig. 11 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 11. Geleznowia eximia: (a) habitat; (b) habit; (c) flowering stem showing yellowish-green stems and whorls of green leaves; (d) dense flowering heads with up to six flowers; (e) open flower showing broad petals and sepals and style with a distinct obovoid stigma at the apex. Vouchers: K.A. Shepherd & B.M. Anderson KS 1832 and KS 1833 (PERTH). Photos: K. A. Shepherd.

Fig. 7 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 7. SVDquartets trees for Geleznowia and two outgroup taxa on the basis of 3338 SNPs. Coloured numbers correspond to genomic groups in the PCA and are coloured by initial morphological identification, and colours of clades match colours in the Structure figure. (a) Lineage tree with individuals represented by a single sequence. Monophyletic groups are collapsed for clarity and labelled with population numbers. Bootstrap support values less than 100 are shown above branches. Pie charts at nodes of interest show site concordance factors: the proportion of informative sites supporting the given branch topology (white) and the two alternative topologies (grey and black). One sample from Group 1 that is placed strangely is indicated with an asterisk (*) in (a) and (b). (b) Consensus network of bootstrap trees for the lineage analysis, showing splits found in at least 10 of the 100 trees. Branch lengths are proportional to bootstrap value; values are omitted for 100 and <20%. (c, top) Species tree with individuals grouped into putative 'species' (genomic groups from the PCA plus the divergent populations P4 and P9). Bootstrap support values less than 100 are shown above branches. (c, bottom) Consensus network of bootstrap trees for the species analysis, showing splits found in at least 10 of the 100 trees. Branch lengths are proportional to bootstrap value; values are omitted for <20%.

Fig. 3 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 3. Principal-component analysis of 1683 SNPs for Geleznowia. The first four principal components are plotted against each other: (a) 2 v. 1; (b) 3 v. 1; (c) 4 v. 1; (d) 3 v. 2. Note that (a), (b) and (c) share the same x-axis, so only the vertical positions of the samples change. Colours and shapes correspond to initial morphological identification, with shading by population. Distinct genomic clusters are indicated with dashed circles and numbered from 1 to 6 (referred to in the text).

Fig. 8 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 8. Distributions of all seven Geleznowia species in Western Australia. The base map is sourced from GADM (ver. 3.6, see https://gadm.org), with grey borders showing IBRA regions and subregions (Department of Agriculture, Water and the Environment 2020).

Fig. 6 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 6. Concatenation maximum-likelihood phylogenetic tree of Geleznowia and two outgroup taxa. Monophyletic groups are collapsed for clarity and labelled with population numbers. Coloured numbers correspond to genomic groups in the PCA and are coloured by initial morphological identification, whereas colours of clades match colours in the Structure figure. Support values are Shimodaira–Hasegawa-like approximate likelihood-ratio test values and ultrafast bootstrap values, in that order. All branches have full support (100/100) except where shown. The scale bar indicates the average number of substitutions per site. Branches are cut in the main figure for clarity, but full branch lengths are provided at the top left.

Fig. 14 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 14. Geleznowia uberiflora: (a) habitat; (b) habit, highlighting the prolific flowers observed in some plants; (c) solitary flower before anthesis, subtended by a few pale yellow bracts tinged with green at the apex; (d) side view of flowers showing the ovate green leaves and the young yellowish-green branchlet (red arrow); (e) flower beginning to open, showing the large obovoid stigma (red arrow); (f) open flower showing the large pale yellow sepals hiding the bracts below, and the bright yellow elliptic petals. Vouchers: A.D. Crawford ADC 1839 (b, c); K.A. Shepherd & B.M. Anderson KS 1828 (d, f); K.A. Shepherd & B.M. Anderson KS 1824 (e). Photos: A. D. Crawford (b, c); K. A. Shepherd (a, d–f).

Fig. 10 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 10. Geleznowia calycina: (a) single-stemmed habit; (b) flowering heads showing the large pale yellow bracts subtending the inflorescence (some tinged red at the apex) with whorls of grey–green leaves below; (c) dense flowering head post-pollination, highlighting the red bracts and sepals; (d) open flower showing the broad pale yellow sepals with bracts below, bright yellow petals and obovoid stigma at the apex of the style; (e) mixed population of G. calycina (left) with a multiple-stemmed habit and clusters of flowers tinged red, compared with G. uberiflora (right) with single pale yellow terminal flowers. Vouchers: K.A. Shepherd & B.M. Anderson KS 1848 (a); K.A. Shepherd & C.F.Wilkins KS 1723 (b); K.A. Shepherd & J.A. Wege KS1300 (c); A.D. Crawford ADC 1344 (d); A.D. Crawford ADC 1840 (right) and ADC 1839 (left) (e). Photos: K. A. Shepherd (a–c, e); A. D. Crawford (d).

Fig. 9 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 9. Geleznowia amabilis: (a) habitat; (b) single-stemmed habit; (c) dense head of vivid yellow flowers above whorls of silvery grey–green leaves; (d) open flower showing the large, vivid yellow sepals surrounding broad, orange–yellow petals and narrow stigma. Voucher: K.A. Shepherd & B.M. Anderson KS 1840. Photos: K. A. Shepherd.

Fig. 4 in Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)

Fig. 4. Results of Structure runs for Geleznowia on the basis of 1683 unlinked SNPs. Sample ancestry assignments for major modes of K6–8 are shown as vertical bars for each sample. Numbered groups (1–6) at the bottom correspond to the six genomic groups identified from the PCA, whereas P4 and P9 refer to divergent populations. The estimated log probability of the data and delta K are shown at the right for K1–15. Values are from the top 10 runs for each K, and error bars show ±s.d.