ArticleGenetics2010
Fine mapping of ui6.1, a gametophytic factor controlling pollen-side unilateral incompatibility in interspecific solanum hybrids.
Article in Genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Cross incompatibility restricting genome exchange and diversification of primary gene pool in plants: challenges and opportunities.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- Molecular mechanisms and genetic regulation of self-incompatibility in flowering plants: implications for crop improvement and evolutionary biology.Plant molecular biology · 2025Review
- Marker assisted pyramiding of major resistance genes of tomato leaf curl and late blight diseases for stabilising tomato production.Physiology and molecular biology of plants : an international journal of functional plant biology · 2025Article
- A toxin-antidote system contributes to interspecific reproductive isolation in rice.Nature communications · 2023Article
- Article
- Self-(In)compatibility Systems: Target Traits for Crop-Production, Plant Breeding, and Biotechnology.Frontiers in plant science · 2020Review
- Two Loci Contribute Epistastically to Heterospecific Pollen Rejection, a Postmating Isolating Barrier Between Species.G3 (Bethesda, Md.) · 2017Article
- Indel Group in Genomes (IGG) Molecular Genetic Markers.Plant physiology · 2016Article
- The importance of reproductive barriers and the effect of allopolyploidization on crop breeding.Breeding science · 2016Review
- Unilateral incompatibility gene ui1.1 encodes an S-locus F-box protein expressed in pollen of Solanum species.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- The role of a pollen-expressed Cullin1 protein in gametophytic self-incompatibility in Solanum.Genetics · 2014Article
- Fine mapping of the tomato yellow leaf curl virus resistance geneMolecular breeding : new strategies in plant improvement · 2014Article
- Developmental onset of reproductive barriers and associated proteome changes in stigma/styles of Solanum pennellii.Journal of experimental botany · 2013Article
- Interspecific reproductive barriers in the tomato clade: opportunities to decipher mechanisms of reproductive isolation.Sexual plant reproduction · 2011Review
- Genome evolution and meiotic maps by massively parallel DNA sequencing: spotted gar, an outgroup for the teleost genome duplication.Genetics · 2011Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Unilateral incompatibility (UI) is a prezygotic reproductive barrier in plants that prevents fertilization by foreign (interspecific) pollen through the inhibition of pollen tube growth. Incompatibility occurs in one direction only, most often when the female is a self-incompatible species and the male is self-compatible (the "SI x SC rule"). Pistils of the wild tomato relative Solanum lycopersicoides (SI) reject pollen of cultivated tomato (S. lycopersicum, SC), but accept pollen of S. pennellii (SC accession). Expression of pistil-side UI is weakened in S. lycopersicum x S. lycopersicoides hybrids, as pollen tube rejection occurs lower in the style. Two gametophytic factors are sufficient for pollen compatibility on allotriploid hybrids: ui1.1 on chromosome 1 (near the S locus), and ui6.1 on chromosome 6. We report herein a fine-scale map of the ui6.1 region. Recombination around ui6.1 was suppressed in lines containing a short S. pennellii introgression, but less so in lines containing a longer introgression. More recombinants were obtained from female than male meioses. A high-resolution genetic map of this region delineated the location of ui6.1 to approximately 0.128 MU, or 160 kb. Identification of the underlying gene should elucidate the mechanism of interspecific pollen rejection and its relationship to self-incompatibility.
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