ArticleAnnals of botany2010
Seven of eight species in Nicotiana section Suaveolentes have common factors leading to hybrid lethality in crosses with Nicotiana tabacum.
Article in Annals of botany, 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, 32 citations in OpenAlex.
- 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
- Identification and editing of a hybrid lethality gene expands the range of interspecific hybridization potential in Nicotiana.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Phenylalanine ammonia-lyase and phenolic compounds are related to hybrid lethality in the crossPlant biotechnology (Tokyo, Japan) · 2020Article
- Nicotiana suaveolens accessions with different ploidy levels exhibit different reproductive isolation mechanisms in interspecific crosses with Nicotiana tabacum.Journal of plant research · 2019Article
- Article
- Time course of programmed cell death, which included autophagic features, in hybrid tobacco cells expressing hybrid lethality.Plant cell reports · 2016Article
- Article
- Identification of Nicotiana tabacum linkage group corresponding to the Q chromosome gene(s) involved in hybrid lethality.PloS one · 2012Article
- Article
- Somatic hybrid plants of Nicotiana x sanderae (+) N. debneyi with fungal resistance to Peronospora tabacina.Annals of botany · 2011Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsReproductive isolation is a mechanism that separates species, and is classified into two types: prezygotic and postzygotic. Inviability of hybrids, or hybrid lethality, is a type of postzygotic isolation and is observed in some plant species, including Nicotiana species. Previous work has shown that the Q chromosome, which belongs to the S subgenome of N. tabacum, encodes one or more genes leading to hybrid lethality in some crosses.
methodsInterspecific crosses of eight wild species were conducted in section Suaveolentes (which consists of species restricted to Australasia and Africa) with the cultivated species Nicotiana tabacum. Hybrid seedlings were cultivated at 28, 34 or 36 degrees C, and PCR and chromosome analysis were performed. RESULTS AND
conclusionsSeven of eight wild species produced inviable hybrids after crossing. Hybrid lethality, which was observed in all crosses at 28 degrees C, was Type II lethality, with the characteristic symptoms of browning of hypocotyl and roots; lethality was suppressed at elevated temperatures (34 or 36 degrees C). Furthermore, one or more genes on the Q chromosome of N. tabacum were absolutely responsible for hybrid lethality, suggesting that many species of section Suaveolentes share the same factor that triggers hybrid lethality by interaction with the genes on the Q chromosome. Exceptionally, only one wild species, N. fragrans, produced 100 % viable hybrids after crossing with N. tabacum, suggesting that N. fragrans has no factor triggering hybrid lethality.
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