Construction of a living library of Solanum tomentosum introgression lines into the S. melongena genome: A tool to exploit novel genetic diversity for eggplant breeding

IF 6.2 1区农林科学 Q1 HORTICULTURE

Horticultural Plant Journal Pub Date : 2025-08-28 DOI:10.1016/j.hpj.2025.04.019

Toppino Laura, Tassone Maria Rosaria, Ribolzi Silvia, Sala Tea, Azzimonti Maria Teresa, Barchi Lorenzo, Gaccione Luciana, Shaaf Salar, Rossini Laura, Rotino Giuseppe Leonardo

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Abstract

Plant architecture, fruit shape and colour, as well as functional properties and resistance to biotic and abiotic stresses are among the main target traits in eggplant genetic improvement. Solanum tomentosum L. is a wild relative of eggplant which is a valuable source of key agronomical traits, including plant architecture, fruit biochemical composition and resistances to pathogens. Following six back–cross cycles using the cultivated eggplant background line ‘67/3’ as recurrent parent, we developed a population of 148 Advanced Backcrossed Lines (ABLs) and Introgression Lines (ILs), each harbouring chromosomal segments from the wild species. Collectively, these introgressed segments cover more than 95 % of the S. tomentosum genome. The resulting ILs population was used to localize chromosomal regions involved in the control of traits of agronomical interest such as plant height, fruit peel pigmentation, and resistance to fungal diseases.

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茄卷毛茄基因组渗入系活文库的构建：开发茄子育种新遗传多样性的工具

茄子的植株结构、果实形状和颜色、功能特性以及对生物和非生物胁迫的抗性是茄子遗传改良的主要目标性状。毛毡茄（Solanum tomentosum L.）是茄子的野生近缘种，是茄子重要农艺性状的宝贵来源，包括植株结构、果实生化成分和抗病能力。以栽培茄子背景系‘67/3’为回交亲本，经过6个回交循环，获得了148个高级回交系（ABLs）和渐渗系（ILs），每一个都含有来自野生茄子的染色体片段。总的来说，这些渐渗片段覆盖了毛毛鼠基因组的95%以上。由此产生的ILs群体被用来定位参与控制农艺性状的染色体区域，如植株高度、果皮色素沉着和对真菌病的抗性。

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来源期刊

Horticultural Plant Journal Environmental Science-Ecology

CiteScore

9.60

自引率

14.00%

发文量

293

审稿时长

33 weeks

期刊介绍： Horticultural Plant Journal (HPJ) is an OPEN ACCESS international journal. HPJ publishes research related to all horticultural plants, including fruits, vegetables, ornamental plants, tea plants, and medicinal plants, etc. The journal covers all aspects of horticultural crop sciences, including germplasm resources, genetics and breeding, tillage and cultivation, physiology and biochemistry, ecology, genomics, biotechnology, plant protection, postharvest processing, etc. Article types include Original research papers, Reviews, and Short communications.