ArticleHeredity2011
Sporophytic self-incompatibility in Senecio squalidus (Asteraceae): S allele dominance interactions and modifiers of cross-compatibility and selfing rates.
Article in Heredity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 36 citations in OpenAlex.
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- The first two chromosome-scale genome assemblies of American hazelnut enable comparative genomic analysis of the genus Corylus.Plant biotechnology journal · 2024Article
- Self-incompatibility: a targeted, unexplored pre-fertilization barrier in flower crops of Asteraceae.Journal of plant research · 2023Review
- Genome-wide identification and characterization of SRLK gene family reveal their roles in self-incompatibility of Erigeron breviscapus.BMC genomics · 2023Article
- Homology-Based Interactions between Small RNAs and Their Targets Control Dominance Hierarchy of Male Determinant Alleles of Self-Incompatibility inInternational journal of molecular sciences · 2021Article
- Characterization and practical use of self-compatibility in outcrossing grass species.Annals of botany · 2021Review
- How rapidly do self-compatible populations evolve selfing? Mating system estimation within recently evolved self-compatible populations of AzoreanEcology and evolution · 2020Article
- Molecular cloning and expression analysis of SRLK1 gene in self-incompatible Asteraceae species Erigeron breviscapus.Molecular biology reports · 2019Article
- Investigation of Differences in Fertility among Progenies from Self-Pollinated Chrysanthemum.International journal of molecular sciences · 2018Article
- Epigenetic regulation of agronomical traits in Brassicaceae.Plant cell reports · 2018Review
- Uncertain pollination environment promotes the evolution of a stable mixed reproductive system in the self-incompatible Hypochaeris salzmanniana (Asteraceae).Annals of botany · 2017Article
- S-genotype identification based on allele-specific PCR in Japanese pear.Breeding science · 2015Article
- Incest versus abstinence: reproductive trade-offs between mate limitation and progeny fitness in a self-incompatible invasive plant.Ecology and evolution · 2013Article
- Pollen-pistil interactions and self-incompatibility in the Asteraceae: new insights from studies of Senecio squalidus (Oxford ragwort).Annals of botany · 2011Review
- Comparative analysis of pistil transcriptomes reveals conserved and novel genes expressed in dry, wet, and semidry stigmas.Plant physiology · 2010Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Understanding genetic mechanisms of self-incompatibility (SI) and how they evolve is central to understanding the mating behaviour of most outbreeding angiosperms. Sporophytic SI (SSI) is controlled by a single multi-allelic locus, S, which is expressed in the diploid (sporophyte) plant to determine the SI phenotype of its haploid (gametophyte) pollen. This allows complex patterns of independent S allele dominance interactions in male (pollen) and female (pistil) reproductive tissues. Senecio squalidus is a useful model for studying the genetic regulation and evolution of SSI because of its population history as an alien invasive species in the UK. S. squalidus maintains a small number of S alleles (7-11) with a high frequency of dominance interactions. Some S. squalidus individuals also show partial selfing and/or greater levels of cross-compatibility than expected under SSI. We previously speculated that these might be adaptations to invasiveness. Here we describe a detailed characterization of the regulation of SSI in S. squalidus. Controlled crosses were used to determine the S allele dominance hierarchy of six S alleles and effects of modifiers on cross-compatibility and partial selfing. Complex dominance interactions among S alleles were found with at least three levels of dominance and tissue-specific codominance. Evidence for S gene modifiers that increase selfing and/or cross-compatibility was also found. These empirical findings are discussed in the context of theoretical predictions for maintenance of S allele dominance interactions, and the role of modifier loci in the evolution of SI.
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