Primrose homostyles: A classic case of possible balancing selection revisited. [PDF]
Mol Ecol, 2023 In this issue of Molecular Ecology, Mora‐Carrera et al. (2022) revisit a case of the loss of an outcrossing system in primroses, which has been studied as an example of balancing selection in the wild since the 1940s. Molecular variants in the gene involved in the mutant self‐fertile phenotype, which is now known, help towards understanding this ...
Charlesworth D.
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Genetics of distyly and homostyly in a self-compatible Primula. [PDF]
Heredity (Edinb), 2019 The transition from outcrossing to selfing through the breakdown of distyly to homostyly has occurred repeatedly among families of flowering plants. Homostyles can originate by major gene changes at the S-locus linkage group, or by unlinked polygenic modifiers.
Yuan S +5 more
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Multiple Glacial Refugia and Complex Postglacial Dynamics of <i>Primula sikkimensis</i> (Primuaceae) in the Heterogeneous Qinghai-Tibet Plateau. [PDF]
Ecol EvolPrimula sikkimensis persisted in distinct glacial refugia within the Hengduan Mountains and eastern Himalayas during the Last Glacial Maximum. Subsequent postglacial range expansions onto the Qinghai–Tibet Plateau were accompanied by secondary contact and interspecific hybridization, collectively enhancing genetic diversity and adaptive capacity. These
Sun HY +10 more
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Acta Botânica Brasílica, 2022 Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues +3 more
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Asymmetrical disassortative pollination mediated by long-/short-tongued pollinators in a distylous Limonium myrianthum (Plumbaginaceae) with a short corolla tubular small flower. [PDF]
Ecol EvolThe pollination efficiency and their effects on floral morph variation of short‐tongued and long‐tongued pollinators were investigated in two Limonium myrianthum populations with short corolla tubular small flowers and considerable floral morph variation. We found that asymmetrical disassortative pollination affects floral morph variation.
Jiao F, Wang X, Zhang A.
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Evolutionary breakdown of distyly to homostyly is accompanied by reductions of floral scent inPrimula oreodoxa [PDF]
Journal of Systematics and Evolution, 2022 AbstractReproductive traits that function in pollinator attraction may be reduced or lost during evolutionary transitions from outcrossing to selfing. Although floral scent plays an important role in attracting pollinators in outcrossing species, few studies have investigated associations between floral scent variation and intraspecific mating system ...
Gui Zeng +3 more
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Domestication During Restoration: Unintentional Selection During Eight Generations of Wild Seed Propagation Reduces Herkogamy, Dichogamy and Heterozygosity in Clarkia pulchella. [PDF]
Mol EcolABSTRACT Seed production on native seed farms has increased to meet the rising demand for plant material for restoration. Although these propagation efforts are necessary for restoration, cultivating wild populations may also result in unintentional selection and elicit evolutionary changes that mimic crop domestication, essentially turning these ...
Etterson JR +3 more
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The genetics of distyly and homostyly in Turners ulmifolia L. (Turneraceae) [PDF]
Heredity, 1985 Turnera ulmifolia L. is a polymorphic complex of diploid, tetraploid and hexaploid varieties. Diploids and tetraploids are distylous and hexaploids homostylous. A controlled crossing programme demonstrated that in diploids distyly is controlled by a single locus with two alleles. Long-styled plants are ss and short-styled plants can be either Ss or SS.
Joel S Shore, Spencer C H Barrett
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Origin and diversification of flax and their relationship with heterostyly across the range
Journal of Biogeography, Volume 48, Issue 8, Page 1994-2007, August 2021., 2021 Abstract Aim Understanding plant diversity and how different traits have shaped the current biodiversity setting across the world is one of the major challenges for evolutionary biology. In this sense, genus Linum have been broadly studied as a model of species showing heterostyly, but no studies have attempted to investigate possible correlations ...
Enrique Maguilla +4 more
wiley +1 more source
Transitions from distyly to homostyly are associated with floral evolution in the buckwheat genus (Fagopyrum) [PDF]
American Journal of Botany, 2017 PREMISE OF THE STUDY:Documenting trait transitions among species with dimorphic flowers can help to test whether similar patterns of selection are responsible for divergence in floral traits among different species. Heterostyly is thought to promote outcrossing.
Ling-Yun, Wu +3 more
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