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Heat stress interferes with formation of double-strand breaks and homolog synapsis.

Plant physiology - 23 Apr 2021

Ning Yingjie, Liu Qingpei, Wang Chong, Qin Erdai, Wu Zhihua, Wang Minghui, Yang Ke, Elesawi Ibrahim Eid, Chen Chunli, Liu Hong, Qin Rui, Liu Bing

Abstract excerpt

Meiotic recombination (MR) drives novel combinations of alleles and contributes to genomic diversity in eukaryotes. In this study, we showed that heat stress (36°C-38°C) over the fertile threshold fully abolished crossover formation in Arabidopsis (Arabidopsis thaliana). Cytological and genetic studies in wild-type plants and syn1 and rad51 mutants suggested that heat stress reduces generation of SPO11-dependent...

Topics

Arabidopsis
Chromosome Pairing
DNA Breaks, Double-Stranded
Genetic Variation
Genotype
Heat-Shock Response
Meiosis

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Identifiers

PMID: 33793950
DOI: 10.1093/plphys/kiab012
PMCID: PMC8133540

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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