Genetic variation in Arabidopsis thaliana reveals the existence of natural heat resilience factors for meiosis DOI
Jiayi Zhao,

Huiqi Fu,

Z.F. Wang

et al.

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 197(1)

Published: Dec. 23, 2024

Abstract Heat interferes with multiple meiotic processes, leading to genome instability and sterility in flowering plants, including many crops. Despite its importance for food security, the mechanisms underlying heat tolerance of meiosis are poorly understood. In this study, we analyzed different processes Arabidopsis (Arabidopsis thaliana) accessions Col Ler, their F1 hybrids, F2 offspring under stress (37 °C). At 37 °C, exhibits significantly reduced formation double-strand breaks completely abolished homolog pairing, synapsis, crossover (CO) formation. Strikingly, Ler Col/Ler hybrids exhibit normal CO show mildly impacted pairing synapsis. Interestingly, only 10% 20% behave as revealing that recombination is genetically controlled by several loci. Moreover, defects chromosome morphology integrity sister chromatid segregation, levels which exceed those either inbreds or thus implying a transgressive effect on meiosis. Furthermore, correlation cytogenetic analyses suggest synapsis have an impact stability at postrecombination stages. This study reveals natural resilience factors Arabidopsis, great potential be exploited breeding programs.

Language: Английский

Reversing anther thermotolerance by manipulating the cis-elements in the promoter of a high-temperature upregulated gene Casein Kinase I in upland cotton DOI
Yanlong Li, Yuhua Fu, Yaoyao Li

et al.

Science China Life Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Language: Английский

Citations

1
Heating up meiosis – Chromosome recombination and segregation under high temperatures DOI Creative Commons
Joke De Jaeger‐Braet, Arp Schnittger

Current Opinion in Plant Biology, Journal Year: 2024, Volume and Issue: 80, P. 102548 - 102548

Published: May 14, 2024

Heat stress is one of the major constraints to plant growth and fertility. During current climate crisis, heat waves have increased dramatically, even more extreme conditions are predicted for near future, considerably affecting ecosystems seriously threatening world food security. Although very well known affect especially reproductive structures, little about how interferes with reproduction in comparison somatic cells tissues. Recently, effect on meiosis as a central process sexual has been analyzed molecular cytological depth. Notably, these studies not only important applied research by laying foundation breeding heat-resilient crops, but also fundamental research, revealing general regulatory mechanisms recombination chromosome segregation control.

Language: Английский

Citations

6
How Rice Responds to Temperature Changes and Defeats Heat Stress DOI Creative Commons
Yufeng Xing, Hongyu Lu,

Xinxing Zhu

et al.

Rice, Journal Year: 2024, Volume and Issue: 17(1)

Published: Nov. 29, 2024

With the intensification of greenhouse effect, a series natural phenomena, such as global warming, are gradually recognized; when ambient temperature increases to extent that it causes heat stress in plants, agricultural production will inevitably be affected. Therefore, several issues associated with crops urgently need solved. Rice is one momentous food for humans, widely planted tropical and subtropical monsoon regions. It prone high summer, leading decrease yield quality. Understanding how rice can tolerate through genetic effects particularly vital. This article reviews respond rising by integrating molecular regulatory pathways introduce its physiological mechanisms tolerance from perspective biology. In addition, genome selection engineering were emphasized provide theoretical basis sustainability stability crop yield-quality structures under temperatures point view breeding.

Language: Английский

Citations

3
Genetic variation in Arabidopsis thaliana reveals the existence of natural heat resilience factors for meiosis DOI
Jiayi Zhao,

Huiqi Fu,

Z.F. Wang

et al.

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 197(1)

Published: Dec. 23, 2024

Abstract Heat interferes with multiple meiotic processes, leading to genome instability and sterility in flowering plants, including many crops. Despite its importance for food security, the mechanisms underlying heat tolerance of meiosis are poorly understood. In this study, we analyzed different processes Arabidopsis (Arabidopsis thaliana) accessions Col Ler, their F1 hybrids, F2 offspring under stress (37 °C). At 37 °C, exhibits significantly reduced formation double-strand breaks completely abolished homolog pairing, synapsis, crossover (CO) formation. Strikingly, Ler Col/Ler hybrids exhibit normal CO show mildly impacted pairing synapsis. Interestingly, only 10% 20% behave as revealing that recombination is genetically controlled by several loci. Moreover, defects chromosome morphology integrity sister chromatid segregation, levels which exceed those either inbreds or thus implying a transgressive effect on meiosis. Furthermore, correlation cytogenetic analyses suggest synapsis have an impact stability at postrecombination stages. This study reveals natural resilience factors Arabidopsis, great potential be exploited breeding programs.

Language: Английский

Citations

1