园艺学报2025，Vol.52Issue(6)：1427-1440,14.DOI:10.16420/j.issn.0513-353x.2024-0746
杂交F1代制干枣果实重要性状遗传变异分析
Genetic Variation and Analysis of Important Traits of Dried Fruits in F1 Hybrid Jujube
摘要
Abstract
To explore the genetic variation patterns of important traits in dried jujube fruit in the hybrid F1 generation,and provide a theoretical basis for breeding dried jujube cultivars,an experiment was conducted using 83 F1 lines and their parents,'Yuhong' × 'Jiaocheng5'.Fourteen traits,including the fresh fruit moisture content at maturity,fruit drying rate,edible rate,appearance,texture parameters,and nutritional quality,were measured and comprehensively evaluated.The results indicated that the fruit distribution,suggesting these are quantitative traits controlled by multiple minor genes.The coefficient of variation for the drying rate and edible rate was relatively high,at 16.11％and 7.70％,respectively,while the moisture content had the smallest variation coefficient at 2.05％,exhibiting a tendency for mid-range inheritance.The variation coefficients for seven texture parameters ranged from 17.50％to 144.00％,showing a trend towards high inheritance,with adhesiveness showing a nearly 1∶1 segregation ratio,suggesting it is a qualitative trait.Hardness 1,hardness 2,cohesiveness,elasticity,chewiness,and adhesiveness followed a normal distribution,indicating these traits are likely controlled by multiple minor genes.The variation coefficients for fruit size ranged from 13.31％to 35.60％,with fruit longitudinal diameter,single fruit weight and fruit shape index showing low inheritance,and fruit transverse diameter showing high inheritance.The variation coefficients for fruit sugar-acid traits ranged from 18.18％to 36.61％,with the sugar-acid ratio showing a trend toward high inheritance,soluble sugars and titratable acid showing mid-range inheritance.A cluster analysis based on texture parameters grouped the F1 progeny into five clusters,with cluster Ⅱ(including the male parent 'Jiaocheng 5',which has higher fruit hardness and lower adhesiveness)representing 51.81％of the population,indicating that the taste of the majority of the F1 dried fruits leaned toward the parent.Through grey relational analysis,five superior lines for dried fruit quality were preliminarily selected.关键词
枣/制干/杂交后代/遗传变异/评价Key words
jujube/dried fruit/hybrid progeny/genetic variation/evaluation分类
农业科技引用本文复制引用
徐强,马全会,闫芬芬,吴翠云,王玖瑞,刘孟军..杂交F1代制干枣果实重要性状遗传变异分析[J].园艺学报,2025,52(6):1427-1440,14.基金项目
国家自然科学基金项目(32060656) （32060656）
兵团科技创新人才计划项目(2023CB090-04) （2023CB090-04）
