Genome-Wide Identification of the LEA Gene Family in Myricaria laxiflora and Its Responses to Abiotic Stress
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View abstract on PubMed
Summary
This summary is machine-generated.This study identified 31 late embryogenesis abundant (LEA) genes in Myricaria laxiflora, revealing their crucial role in adapting to flooding-drought cycles. These findings offer molecular targets for ecological restoration in the Yangtze River Basin.
Area Of Science
- Plant molecular biology
- Genomics
- Abiotic stress response
Background
- The late embryogenesis abundant (LEA) gene family is vital for plant tolerance to abiotic stresses.
- Myricaria laxiflora, a pioneer species in the Yangtze River's fluctuating zone, exhibits unique stress adaptation mechanisms.
- The response of LEA genes to alternating flooding-drought cycles in M. laxiflora is not well understood.
Purpose Of The Study
- To identify and characterize the LEA gene family in Myricaria laxiflora.
- To investigate the molecular mechanisms of LEA gene regulation in response to flooding-drought stress.
- To provide insights into the adaptation strategies of M. laxiflora in extreme environments.
Main Methods
- Whole-genome and transcriptome analyses were performed using bioinformatics approaches.
- 31 LEA genes were identified and classified into nine subfamilies.
- Promoter analysis and spatio-temporal expression profiling were conducted.
Main Results
- 31 LEA genes were identified and distributed across 12 chromosomes, categorized into nine subfamilies.
- LEA gene promoters contain cis-acting elements for anaerobic induction, ABA response, and temperature/light stress.
- Root-specific LEA genes are involved in membrane lipid binding, while leaf-predominant members support the antioxidant system.
Conclusions
- The study elucidates the dynamic regulatory mechanisms of the LEA gene family in M. laxiflora's flooding-drought adaptation.
- Identified LEA genes and their regulatory elements provide molecular targets for ecological restoration.
- Findings contribute to understanding plant adaptation in challenging environments like the Yangtze River Basin.
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