Pattern of inheritance of a self‐fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population do Canto, Javier Studer, Bruno Lubberstedt, Thomas Frei, Ursula Lubberstedt, Thomas
dc.contributor.department Agronomy 2019-10-25T13:36:39.000 2020-06-29T23:06:27Z 2020-06-29T23:06:27Z Tue Jan 01 00:00:00 UTC 2019 2020-10-17 2019-10-17
dc.description.abstract <p>A mutation causing self‐fertility (SF) in perennial ryegrass (Lolium perenne L.) was studied at the tetraploid level. The aim of this work was to determine a) whether SF remains functional in a tetraploid population; and b) if the SF mutation expresses dominance in heterozygous pollen grains. A tetraploidized plant carrying SF alleles was self‐pollinated to create a segregating F2 population. In the F2 individuals, pollen compatibility ranged between 38% and 84% showing that SF remained functional. The SF locus genotype was the main determinant of pollen compatibility explaining 78% of the variation. The observed segregation was significantly different from the expected under both SF being dominant or recessive models (P(χ2)≤0.001), and tended to be intermediate between them, indicating partial dominance or additive gene action. The frequency of the different genotypes suggested that pollen grains homozygous for the mutation have a competitive advantage over heterozygous pollen and that pollen compatibility is affected by the interaction with additional loci. The implications of our results for breeding polyploid grasses are discussed.</p>
dc.description.comments <p>This is the peer reviewed version of the following article: Do Canto, Javier, Bruno Studer, Ursula Frei, and Thomas Lübberstedt. "Pattern of inheritance of a self‐fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population." <em>Plant Breeding </em>(2019), which has been published in final form at doi: <a href="">10.1111/pbr.12765</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1647
dc.identifier.contextkey 15615717
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/598
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 01:04:36 UTC 2022
dc.source.uri 10.1111/pbr.12765
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Plant Breeding and Genetics
dc.subject.keywords perennial ryegrass
dc.subject.keywords tetraploid
dc.subject.keywords self‐fertility
dc.subject.keywords segregation
dc.title Pattern of inheritance of a self‐fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 4e4330cd-db15-4ac5-8924-41119139cf32
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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