ArticlePloS one2012
Genes in S and T subgenomes are responsible for hybrid lethality in interspecific hybrids between Nicotiana tabacum and Nicotiana occidentalis.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Genome-shock deletion of a hybrid lethality gene breaks a reproductive barrier and facilitates speciation inFrontiers in plant science · 2025Article
- Genetic Cause of Hybrid Lethality Observed in Reciprocal Interspecific Crosses betweenInternational journal of molecular sciences · 2024Article
- Understanding and overcoming hybrid lethality in seed and seedling stages as barriers to hybridization and gene flow.Frontiers in plant science · 2023Review
- The hybrid lethality of interspecific FMolecular breeding : new strategies in plant improvement · 2022Review
- Genetic Mapping of thePlants (Basel, Switzerland) · 2021Article
- Two Nicotiana occidentalis accessions enable gene identification for Type II hybrid lethality by the cross to N. sylvestris.Scientific reports · 2021Article
- Nicotiana suaveolens accessions with different ploidy levels exhibit different reproductive isolation mechanisms in interspecific crosses with Nicotiana tabacum.Journal of plant research · 2019Article
- Transcriptomic analysis reveals overdominance playing a critical role in nicotine heterosis in Nicotiana tabacum L.BMC plant biology · 2018Article
- Tumorigenesis inheritance from the putative progenitor species ofPlant biotechnology (Tokyo, Japan) · 2017Article
- Article
- Identification of Nicotiana tabacum linkage group corresponding to the Q chromosome gene(s) involved in hybrid lethality.PloS one · 2012Article
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2 authors.
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Abstract
backgroundMany species of Nicotiana section Suaveolentes produce inviable F(1) hybrids after crossing with Nicotiana tabacum (genome constitution SSTT), a phenomenon that is often called hybrid lethality. Through crosses with monosomic lines of N. tabacum lacking a Q chromosome, we previously determined that hybrid lethality is caused by interaction between gene(s) on the Q chromosome belonging to the S subgenome of N. tabacum and gene(s) in Suaveolentes species. Here, we examined if hybrid seedlings from the cross N. occidentalis (section Suaveolentes)×N. tabacum are inviable despite a lack of the Q chromosome. METHODOLOGY/PRINCIPAL
findingsHybrid lethality in the cross of N. occidentalis×N. tabacum was characterized by shoots with fading color. This symptom differed from what has been previously observed in lethal crosses between many species in section Suaveolentes and N. tabacum. In crosses of monosomic N. tabacum plants lacking the Q chromosome with N. occidentalis, hybrid lethality was observed in hybrid seedlings either lacking or possessing the Q chromosome. N. occidentalis was then crossed with two progenitors of N. tabacum, N. sylvestris (SS) and N. tomentosiformis (TT), to reveal which subgenome of N. tabacum contains gene(s) responsible for hybrid lethality. Hybrid seedlings from the crosses N. occidentalis×N. tomentosiformis and N. occidentalis×N. sylvestris were inviable. CONCLUSIONS/SIGNIFICANCE: Although the specific symptoms of hybrid lethality in the cross N. occidentalis×N. tabacum were similar to those appearing in hybrids from the cross N. occidentalis×N. tomentosiformis, genes in both the S and T subgenomes of N. tabacum appear responsible for hybrid lethality in crosses with N. occidentalis.
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