ArticlePloS one2011
Expression and trans-specific polymorphism of self-incompatibility RNases in coffea (Rubiaceae).
Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 64 citations in OpenAlex.
- Identification of a candidate self-incompatibility locus in beet (Beta vulgaris).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Sexes Are Polymorphisms: Describing and Understanding Sexual Diversity as Phenotypic Variation.Integrative and comparative biology · 2026Review
- Rapid detection of RNase-based self-incompatibility in Lysimachia monelli (Primulaceae).American journal of botany · 2025Article
- Article
- Article
- Molecular Approaches to Overcome Self-Incompatibility in Diploid Potatoes.Plants (Basel, Switzerland) · 2022Review
- Trans-specific polymorphism and the convergent evolution of supertypes in major histocompatibility complex class II genes in darters (Ecology and evolution · 2022Article
- The identification of the Rosa S-locus and implications on the evolution of the Rosaceae gametophytic self-incompatibility systems.Scientific reports · 2021Article
- Evolution of self-compatibility by a mutant SNature plants · 2020Article
- Article
- Self-(In)compatibility Systems: Target Traits for Crop-Production, Plant Breeding, and Biotechnology.Frontiers in plant science · 2020Review
- Article
- High extinction risk for wild coffee species and implications for coffee sector sustainability.Science advances · 2019Article
- Predicting Specificities Under the Non-self Gametophytic Self-Incompatibility Recognition Model.Frontiers in plant science · 2019Article
- Inferences on specificity recognition at the Malus×domestica gametophytic self-incompatibility system.Scientific reports · 2018Article
- Article
- Lack of S-RNase-Based Gametophytic Self-Incompatibility in Orchids Suggests That This System Evolved after the Monocot-Eudicot Split.Frontiers in plant science · 2017Article
- The Jujube Genome Provides Insights into Genome Evolution and the Domestication of Sweetness/Acidity Taste in Fruit Trees.PLoS genetics · 2016Article
- Allelic diversity of S-RNase alleles in diploid potato species.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2016Article
- Recognition of a wide-range of S-RNases by S locus F-box like 2, a general-inhibitor candidate in the Prunus-specific S-RNase-based self-incompatibility system.Plant molecular biology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Self-incompatibility (SI) is widespread in the angiosperms, but identifying the biochemical components of SI mechanisms has proven to be difficult in most lineages. Coffea (coffee; Rubiaceae) is a genus of old-world tropical understory trees in which the vast majority of diploid species utilize a mechanism of gametophytic self-incompatibility (GSI). The S-RNase GSI system was one of the first SI mechanisms to be biochemically characterized, and likely represents the ancestral Eudicot condition as evidenced by its functional characterization in both asterid (Solanaceae, Plantaginaceae) and rosid (Rosaceae) lineages. The S-RNase GSI mechanism employs the activity of class III RNase T2 proteins to terminate the growth of "self" pollen tubes. Here, we investigate the mechanism of Coffea GSI and specifically examine the potential for homology to S-RNase GSI by sequencing class III RNase T2 genes in populations of 14 African and Madagascan Coffea species and the closely related self-compatible species Psilanthus ebracteolatus. Phylogenetic analyses of these sequences aligned to a diverse sample of plant RNase T2 genes show that the Coffea genome contains at least three class III RNase T2 genes. Patterns of tissue-specific gene expression identify one of these RNase T2 genes as the putative Coffea S-RNase gene. We show that populations of SI Coffea are remarkably polymorphic for putative S-RNase alleles, and exhibit a persistent pattern of trans-specific polymorphism characteristic of all S-RNase genes previously isolated from GSI Eudicot lineages. We thus conclude that Coffea GSI is most likely homologous to the classic Eudicot S-RNase system, which was retained since the divergence of the Rubiaceae lineage from an ancient SI Eudicot ancestor, nearly 90 million years ago.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.