中国农业科学2025，Vol.58Issue(9)：1816-1829,14.DOI:10.3864/j.issn.0578-1752.2025.09.011
加工番茄高可溶性固形物含量位点的遗传与互作效应分析
Genetic and Interaction Analysis of High Soluble Solid Content Loci in Processing Tomato
摘要
Abstract
[Objective]This study aimed to explore the genetic effects and the interaction effects by utilizing the introgression lines with high soluble solid content sites,which could provide material and theoretical basis for genetic improvement of high-quality,gene pyramiding,and hybrid vigor prediction of tomatoes.[Method]Nine introgression lines(ILs)comprising high-SSC loci of S.pennellii LA0716(IL1-4,IL2-6,IL4-4,IL5-4-5-44,IL7-3,IL7-5-5,IL8-3,IL9-2-5)and S.habrochaites LA1777(LA3914)were selected to analyze the effects of genetic,intra-specific,and inter-specific interactions of soluble solids content,fruit weight,and plant yield.[Result]As the genetic effects,the high soluble solids loci contained in IL7-3 exhibit dominant effect,while the linkage drag of yield reducing show dominant effect.The high soluble solids loci in IL 9-2-5 exhibit dominant effect also,with the fruit weight and yield do not reduce.The yield increase loci in IL1-4 were over-dominant.The linkage drag loci responsible for reducing fruit weight in IL2-6 were dominant.In the interaction,some ILs or loci that can affect SSC and yield were selected.Such as,IL7-3 and IL9-2-5 have good epistatic and additive effects,both of which can significantly increase SSC in double hybrids,but the yield of double hybrids which contained IL7-3 was also reduced.IL2-6 can reduce the fruit weight of its interaction combination significantly.The yield of double hybrids which has IL5-4-5-44 or IL7-5-5 get increased.The alleles of IL1-4 and LA3914 both have better dominant or super-dominant effects on plant yield and horticultural yield.Our results showed that,the correlation between horticultural yield and plant yield was found to be high(with a correlation coefficient of 0.916).Thus,increasing SSC as part of genetic improvement must be performed under the premise of ensuring high yield.[Conclusion]The total soluble solid content and horticultural yield could be improved effectively through pyramiding high soluble solids loci.In order to improve their interaction effects more effectively,the interaction of high soluble solids loci which has synergism in genetics and physiology could be better.Therefore,selecting suitable high solid content sites for multigene polymerization breeding is an effective way to improve the soluble solid content and yield of tomatoes.关键词
番茄/可溶性固形物/渐渗系/遗传效应/互作效应Key words
tomato/soluble solid/introgression lines/genetic effects/interaction effects引用本文复制引用
张敏,黄泽军,王孝宣,国艳梅,杜永臣,刘洪海,李君明,刘磊,李鑫,张勇,钟德萍,鲁晓晓,何淑敏,陈冬红,李烨,李荣霞..加工番茄高可溶性固形物含量位点的遗传与互作效应分析[J].中国农业科学,2025,58(9):1816-1829,14.基金项目
中基健康产业股份有限公司博士后合作项目、兵团科技计划(2024AB022)、国家重点研发项目(2022YFD1200805)、国家自然科学基金(31993118015)、新疆生产建设兵团技术创新人才计划(2023CB019-02)、农业农村部园艺作物生物学与种质创制重点实验室项目 （2024AB022）
