ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik1994
Random chloroplast segregation and frequent mtDNA rearrangements in fertile somatic hybrids between Nicotiana tabacum L. and N. glutinosa L.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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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.
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Who cites it
3 citing papers in PubMed, 15 citations in OpenAlex.
- Genotyping of somatic hybrids between Festuca arundinacea Schreb. and Triticum aestivum L.Plant cell reports · 2007Article
- Rare symmetric and asymmetric Nicotiana tabacum (+) N. megalosiphon somatic hybrids recovered by selection for nuclear-encoded resistance genes and in the absence of genome inactivation.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 1995Article
- Interaction between cytoplasmic composition and yield parameters in somatic hybrids of S. tuberosum L.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 1994Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Patterns of organelle inheritance were examined among fertile somatic hybrids between allotetraploid Nicotiana tabacum L. (2n=4x=48) and a diploid wild relative N. glutinosa L. (2n=2x=24). Seventy somatic hybrids resistant to methotrexate and kanamycin were recovered following fusion of leaf mesophyll protoplasts of transgenic methotrexate-resistant N. tabacum and kanamycin-resistant N. glutinosa. Evidence for hybridization of nuclear genomes was obtained by analysis of glutamate oxaloacetate transaminase and peroxidase isoenzymes and by restriction fragment length polymorphism (RFLP) analysis using a heterologous nuclear ribosomal DNA probe. Analysis of chloroplast genomes in a population of 41 hybrids revealed a random segregation of chloroplasts since 25 possessed N. glutinosa chloroplasts and 16 possessed N. tabacum chloroplasts. This contrasts with the markedly non-random segregation of plastids in N. tabacum (+)N. rustica and N. tabacum (+) N. debneyi somatic hybrids which we described previously and which were recovered using the same conditions for fusion and selection. The organization of the mitochondrial DNA (mtDNA) in 40 individuals was examined by RFLP analysis with a heterologous cytochrome B gene. Thirty-eight somatic hybrids possessed mitochondrial genomes which were rearranged with respect to the parental genomes, two carried mtDNA similar to N. tabacum, while none had mtDNA identical to N. glutinosa. The somatic hybrids were self-fertile and fertile in backcrosses with the tobacco parent.
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Registered trials
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