蓝莓森茂一号与绿宝石正反交后代果实主要经济性状遗传倾向分析  

Analysis of inherited tendency of the main fruit economic characteristics in reciprocal crossing between Senmao 1 and Emerald of blueberry

作　　者：雷蕾 徐国辉[1,2,3] 王丽 杜乾慧[3] 李逸斐 王贺新 LEI Lei;XU Guohui;WANG Li;DU Qianhui;LI Yifei;WANG Hexin(Institute of Modern Agricultural Research,Dalian University,Dalian 116622,Liaoning,China;Dalian Senmao Modern Agriculture Co.,Ltd,Dalian 116112,Liaoning,China;College of Life and Health,Dalian University,Dalian 116622,Liaoning,China)

机构地区：[1]大连大学现代农业研究院,辽宁大连116622 [2]大连森茂现代农业有限公司,辽宁大连116112 [3]大连大学生命健康学院,辽宁大连116622

出　　处：《果树学报》2022年第9期1573-1586,共14页Journal of Fruit Science

基　　金：2021年省级标准化试点项目(0102782);国家林业草原知识产权转化运用项目(KJZXXP202214)。

摘　　要：【目的】掌握蓝莓杂交后代果实性状遗传倾向及果实性状间的相关性,为蓝莓育种科学选配亲本提供参考。【方法】对森茂一号与绿宝石正反交后代10个果实性状进行调查以及相关性分析和主成分分析。【结果】在正、反交组合中,单果质量分别呈趋小、趋中偏大遗传;果实纵/横径、固酸比分别呈趋小和趋中遗传;可滴定酸含量分别呈趋中和偏小遗传;果形指数、果蒂痕均呈趋中变异;果柄长度、果实硬度、可溶性固形物含量均呈趋小遗传。单果质量与果蒂痕呈正相关,与可滴定酸含量呈负相关。果实硬度与可滴定酸含量呈正相关,与固酸比呈负相关。5个主成分因子累计方差贡献率为82.92%。【结论】单果质量、果实纵/横径可稳定遗传,而果实硬度和可滴定酸含量遗传效应小,易受环境影响。【Objective】In this study, the genetic variation tendency of fruit traits of blueberry hybrids was investigated, and the correlations between different fruit traits were analyzed in order to provide a theoretical reference for scientific selection of parents, reasonable formulation of breeding programs,and improvement of breeding efficiency in blueberry.【Methods】In this experiment, the cross combinations were set as Senmao 1 × Emerald and Emerald × Senmao 1. Senmao 1 is a new northern highbush blueberry cultivar developed by our group, Emerald is a foreign southern highbush blueberry cultivar.The Senmao 1 × Emerald was the positive cross combination producing 156 strains, while Emerald ×Senmao 1 was the negative cross combination producing 104 strains. The crossings were made in 2012and the seedlings were obtained in 2013, and the fruit traits were investigated in 2019 and 2020. Ten ripe fruits were collected randomly from different positions of each plant for examining the fruit traits.The single fruit weight was measured with an electronic balance and the fruit longitudinal diameter, and transverse diameter were measured with a vernier caliper, and then the fruit shape index was calculated.The picking scar, fruit stalk length was measured with a vernier caliper. The fruit firmness was measured with a GY-4 firmness meter. The soluble solids content, titratable acidity, and solid-acid ratio were determined by ATAGO PAL-BXIACID7. The average values of the measured values of the samples for two consecutive years were used as statistical analysis data, and SPSS 24.0, Excel 2016 were used to calculate the coefficient of variation(CV/%), heritability(Ta/%), broad-sense heritability(H2/%), higher than high parents rate(HH/%), between parents rate(BP/%), lower than low parents rate(LL/%). The SPSS 24.0 was used to produce a range box plot and frequency histogram of fruit traits distribution of hybrids. The R software was used to analyze the correlation and principal component of the main fruit economic traits

关 键 词：蓝莓 正反交组合 果实主要经济性状 遗传倾向 

分 类 号：S663.2[农业科学—果树学]