Evidence map›Paper›PMID 32856713›Full record

ArticleAnnals of botany2021

A new genetic locus for self-compatibility in the outcrossing grass species perennial ryegrass (Lolium perenne).

Lucy M Slatter, Susanne Barth, Chloe Manzanares, Janaki Velmurugan, Iain Place, Daniel Thorogood

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Annals of botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 35% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 21 citations in OpenAlex.

  1. Genetic and genomic resources for turfgrasses: status, applications, and prospects.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 6 institutions in 3 countries.

Lucy M SlatterInstitute of Biological, Environmental and Rural Sciences, Gogerddan, Aberystwyth University, Aberystwyth, UK.
Susanne BarthTeagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland.
Chloe ManzanaresETH Zurich, Department of Environmental Systems Science, Universitätstrasse 2, 8092 Zürich, Switzerland.
Janaki VelmuruganTeagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland.
Iain PlaceInstitute of Biological, Environmental and Rural Sciences, Gogerddan, Aberystwyth University, Aberystwyth, UK.
Daniel ThorogoodInstitute of Biological, Environmental and Rural Sciences, Gogerddan, Aberystwyth University, Aberystwyth, UK.
Aberystwyth University · GBETH Zurich · CHInstitute of Biological, Environmental and Rural Sciences · GBTeagasc - The Irish Agriculture and Food Development Authority · IEUniversity College Cork · IEUniversity of Hertfordshire · GB

Funding

Biotechnology and Biological Sciences Research Council BB/CSP1730/1Biotechnology and Biological Sciences Research Council BB/G012342/1Biotechnology and Biological Sciences Research Council BB/J004405/1
6 · The paper itself

Abstract

backgroundSelf-incompatibility (SI) is a physiological mechanism that many flowering plants employ to prevent self-fertilization and maintain heterozygosity. In the grass family this is known to be controlled by a two locus (S-Z) system; however, the SI system is intrinsically leaky. Modifier genes of both the S and Z loci and a further locus, T, are known to override SI leading to self-fertilization and self-seed production. This has implications for the ecological and evolutionary success as well as the commercial breeding of grasses. Here we report a study where the genetic control of self-compatibility (SC) was determined from the results of self-pollinating an F2 population of perennial ryegrass from two independently derived inbred lines produced by single-seed descent.

methodsIn vitro self-pollinations of 73 fertile plants were analysed. A genetic association analysis was made with a panel of 1863 single-nucleotide polymorphism (SNP) markers, generated through genotype-by-sequencing methodology. Markers were placed on a recombination map of seven linkage groups (LGs) created using Joinmap v.5. The seed set on self- and open-pollinated inflorescences was determined on 143 plants, including the 73 plants analysed for self-pollination response. KEY

resultsSelf-pollinations revealed a bimodal distribution of percentage SC with peaks at 50 and 100 %. A single quantitative trait locus (QTL) was identified with peak association for marker 6S14665z17875_11873 that mapped to LG 6. Peak position was associated with maximum marker segregation distortion. The self-compatible plants were equally fecund after self- and open pollination.

conclusionsThis is the first report in the Poaceae family of an SC locus located on LG 6. This new SC QTL discovery, as well as indicating the complex nature of the pollen-stigma recognition process and its evolutionary significance, provides an additional source of SC for breeding perennial ryegrass.

Indexed as

LoliumChromosome MappingGenetic LinkagePlant BreedingPoaceaeGenetic linkage mapgenotyping by sequencingheterosisinbreedingPoaceaequantitative trait locusreproductive assuranceself-incompatibilitysingle-nucleotide polymorphism

Identifiers

PMID32856713
PMCPMC8103805
OpenAlexW3082361095

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.