ArticleAnnals of botany2017
Rye (Secale cereale) supernumerary (B) chromosomes associated with heat tolerance during early stages of male sporogenesis.
Article in Annals of botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Distribution of B chromosomes in Prospero autumnale associates with higher reproductive performance in southern Iberia.Genetica · 2026Article
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- Maize B chromosome affects the flowering time.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Dynamic meiotic behavior and evolutionary insights of supernumerary B chromosomes in the hangingflyComparative cytogenetics · 2025Article
- Article
- Meiotic segregation and post-meiotic drive of the Festuca pratensis B chromosome.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
- Rye B chromosomes differently influence the expression of A chromosome-encoded genes depending on the host species.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Article
- The non-Mendelian behavior of plant B chromosomes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Review
- Comprehending the dynamism of B chromosomes in their journey towards becoming unselfish.Frontiers in cell and developmental biology · 2022Review
- Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players.Frontiers in genetics · 2021Review
- Heat stress interferes with chromosome segregation and cytokinesis during male meiosis inPlant signaling & behavior · 2020Article
- Article
- Repetitive DNA landscape in essential A and supernumerary B chromosomes of Festuca pratensis Huds.Scientific reports · 2019Article
- Molecular cytogenetics of valuable Arctic and sub-Arctic pasture grass species from the Aveneae/Poeae tribe complex (Poaceae).BMC genetics · 2019Article
- Epigenetic DNA Modifications Are Correlated With B Chromosomes and Sex in the CichlidFrontiers in genetics · 2019Article
- Comparative molecular cytogenetic characterization of seven Deschampsia (Poaceae) species.PloS one · 2017Article
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6 authors.
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Abstract
BACKGROUND AND
aimsRye supernumerary (B) chromosomes have an accumulation mechanism involving the B subtelomeric domain highly enriched in D1100- and E3900-related sequences. In this work, the effects of heat stress during the early stages of male meiosis in 0B and +B plants were studied.
methodsIn-depth cytological analyses of chromatin structure and behaviour were performed on staged rye meiocytes utilizing DAPI, fluorescence in situ hybridization and 5-methylcytosine immune labelling. Quantitative real-time PCR was used to measure heat effects on the expression of the Hsp101 gene as well as the 3·9- and 2·7-kb E3900 forms in various tissues and meiotic stages. KEY RESULTS AND
conclusionsQuantitative real-time PCR established that heat induced equal up-regulation of the Hsp101 gene in 0B and 2B plants, with a marked peak in anthers with meiocytes staged at pachytene. Heat also resulted in significant up-regulation of E3900-related transcripts, especially at pachytene and for the truncated 2·7-kb form of E3900. Cytological heat-induced anomalies in prophase I, measured as the frequency of anomalous meiocytes, were significantly greater in 0B plants. Whereas telomeric sequences were widely distributed in a manner close to normal in the majority of 2B pachytene cells, most 0B meiocytes displayed abnormally clustered telomeres after chromosome pairing had occurred. Relevantly, bioinformatic analysis revealed a significantly high-density heat responsive cis regulatory sequence on E3900, clearly supporting stress-induced response of transcription for the truncated variant. Taken together, these results are the first indication that rye B chromosomes have implications on heat tolerance and may protect meiocytes against heat stress-induced damage.
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