Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity

Leaf senescence, the final stage of leaf development, is crucial for plant fitness as it enhances nutrient reutilization, supporting reproductive success and overall plant adaptation. Understanding its molecular and genetic regulation is essential to improve crop resilience and productivity, particu...

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Main Authors: Phan Phuong Thao Doan, Hue Huong Vuong, Jeongsik Kim
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/13/23/3405
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author Phan Phuong Thao Doan
Hue Huong Vuong
Jeongsik Kim
author_facet Phan Phuong Thao Doan
Hue Huong Vuong
Jeongsik Kim
author_sort Phan Phuong Thao Doan
collection DOAJ
description Leaf senescence, the final stage of leaf development, is crucial for plant fitness as it enhances nutrient reutilization, supporting reproductive success and overall plant adaptation. Understanding its molecular and genetic regulation is essential to improve crop resilience and productivity, particularly in the face of global climate change. This review explores the significant contributions of natural genetic diversity to our understanding of leaf senescence, focusing on insights from model plants and major crops. We discuss the physiological and adaptive significance of senescence in plant development, environmental adaptation, and agricultural productivity. The review emphasizes the importance of natural genetic variation, including studies on natural accessions, landraces, cultivars, and artificial recombinant lines to unravel the genetic basis of senescence. Various approaches, from quantitative trait loci mapping to genome-wide association analysis and <i>in planta</i> functional analysis, have advanced our knowledge of senescence regulation. Current studies focusing on key regulatory genes and pathways underlying natural senescence, identified from natural or recombinant accession and cultivar populations, are highlighted. We also address the adaptive implications of abiotic and biotic stress factors triggering senescence and the genetic mechanisms underlying these responses. Finally, we discuss the challenges in translating these genetic insights into crop improvement. We propose future research directions, such as expanding studies on under-researched crops, investigating multiple stress combinations, and utilizing advanced technologies, including multiomics and gene editing, to harness natural genetic diversity for crop resilience.
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spelling doaj-art-a14062c3447e4cbeade78ce0ec1e9a8d2025-08-20T02:38:48ZengMDPI AGPlants2223-77472024-12-011323340510.3390/plants13233405Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant DiversityPhan Phuong Thao Doan0Hue Huong Vuong1Jeongsik Kim2Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of KoreaInterdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of KoreaInterdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of KoreaLeaf senescence, the final stage of leaf development, is crucial for plant fitness as it enhances nutrient reutilization, supporting reproductive success and overall plant adaptation. Understanding its molecular and genetic regulation is essential to improve crop resilience and productivity, particularly in the face of global climate change. This review explores the significant contributions of natural genetic diversity to our understanding of leaf senescence, focusing on insights from model plants and major crops. We discuss the physiological and adaptive significance of senescence in plant development, environmental adaptation, and agricultural productivity. The review emphasizes the importance of natural genetic variation, including studies on natural accessions, landraces, cultivars, and artificial recombinant lines to unravel the genetic basis of senescence. Various approaches, from quantitative trait loci mapping to genome-wide association analysis and <i>in planta</i> functional analysis, have advanced our knowledge of senescence regulation. Current studies focusing on key regulatory genes and pathways underlying natural senescence, identified from natural or recombinant accession and cultivar populations, are highlighted. We also address the adaptive implications of abiotic and biotic stress factors triggering senescence and the genetic mechanisms underlying these responses. Finally, we discuss the challenges in translating these genetic insights into crop improvement. We propose future research directions, such as expanding studies on under-researched crops, investigating multiple stress combinations, and utilizing advanced technologies, including multiomics and gene editing, to harness natural genetic diversity for crop resilience.https://www.mdpi.com/2223-7747/13/23/3405senescencegenetic diversityassociation analysisaccessionscultivarsGWAS
spellingShingle Phan Phuong Thao Doan
Hue Huong Vuong
Jeongsik Kim
Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
Plants
senescence
genetic diversity
association analysis
accessions
cultivars
GWAS
title Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
title_full Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
title_fullStr Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
title_full_unstemmed Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
title_short Genetic Foundation of Leaf Senescence: Insights from Natural and Cultivated Plant Diversity
title_sort genetic foundation of leaf senescence insights from natural and cultivated plant diversity
topic senescence
genetic diversity
association analysis
accessions
cultivars
GWAS
url https://www.mdpi.com/2223-7747/13/23/3405
work_keys_str_mv AT phanphuongthaodoan geneticfoundationofleafsenescenceinsightsfromnaturalandcultivatedplantdiversity
AT huehuongvuong geneticfoundationofleafsenescenceinsightsfromnaturalandcultivatedplantdiversity
AT jeongsikkim geneticfoundationofleafsenescenceinsightsfromnaturalandcultivatedplantdiversity