茄子不同花色、果色和果肉色相关性遗传研究

茄子不同花色、果色和果肉色相关性遗传研究

DOI:

作者单位:

扬州大学园艺与植物保护学院,扬州 225000

基金项目:

国家自然科学基金（31972395）

Genetic Study on Correlation of Flower Color， Peel Color and Flesh Color of Eggplant

Author:

ZHANG Cheng-cheng

College of Horticulture and Plant Protection,Yangzhou University
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FAN Meng-yuan

College of Horticulture and Plant Protection,Yangzhou University
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CHENG Yu-fu

College of Horticulture and Plant Protection,Yangzhou University
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CHEN Xue-hao

College of Horticulture and Plant Protection,Yangzhou University
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Affiliation:

College of Horticulture and Plant Protection,Yangzhou University,Yangzhou 225000

Fund Project:

The National Nature Science Foundation of China（31972395）

摘要:

以 4 个花色、果皮色和果肉色不同的茄子高代自交系为试验材料，将其配制成 3 个杂交组合，并进行回交、自交得到 3 个组合的 6 个世代群体，研究茄子花色、果皮色和果肉色遗传的相关性，旨在丰富茄子果色和果肉色遗传研究，并为茄子 新品种选育提供理论依据。结果表明：茄子花紫色对白色为完全显性，紫色对白色是由 1 对基因控制。果色紫色对白色是由2 对具有重叠作用的显性基因控制，且紫色基因具有显性上位作用。果皮紫色对绿色为显性，紫色基因对绿色基因表达有抑 制作用。果肉绿白色对白色为显性，绿白色对白色由 1 对完全显性基因控制。茄子果皮颜色和果肉颜色在遗传过程中存在基因互作效应，控制茄子果肉的绿白色基因对控制茄子果皮的白色基因有上位作用；茄子花色和果皮色为不完全连锁遗传，白 花绿皮茄和紫花紫皮茄遗传交换值为 20.5%，紫花紫皮茄和白花白皮茄遗传交换值为 34.6%；茄子花色和果肉色在杂交遗传过程中符合独立遗传规律，不存在连锁关系。

Abstract:

Four eggplant inbred lines with different colors in flower，peel and flesh were used as experimental materials，which were crossed in three hybrid combinations and through backcrossing and selfing produced six generation populations，for the study of the genetic relationships among eggplant flower color，peel color and flesh color，the aim of this study was to enrich the genetic research on peel color and flesh color of eggplant，and to provide theoretical basis for the breeding of new eggplant varieties. The results indicated that the flower color was controlled by a pair of genes，with purple fully dominant to white. The peel color was controlled by two pairs of dominant genes with overlapping effect，and the purple gene had dominant epistatic effect. Peel purple was dominant to green，and the purple gene of eggplant peel color inhibited the expression of the green gene. The flesh color was controlled by a pair of genes，with green-white fully dominant to white. There was the gene interaction effect in the inheritance of eggplant peel color and flesh color. The green-white gene controlling eggplant flesh had an epistatic effect on the white gene controlling eggplant peel，the inheritance of eggplant flower color and peel color were not completely linked，the crossing-over value of white flower with green peel and purple flower with purple peel being 20.5%，and the crossing-over value of white flower with white peel and purple flower with purple peel being 34.6%，the flower color and flesh color of eggplant were in accordance with the independent genetic law in the process of hybrid inheritance，and there was no linkage relationship.

张成成,范孟媛,成玉富,等.茄子不同花色、果色和果肉色相关性遗传研究[J].植物遗传资源学报,2021,22(3):700-706.

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