Domestication and breeding changed tomato fruit transcriptome

【Author】

LIU Dan;YANG Liang;ZHANG Jin-zhe;ZHU Guang-tao;Lü Hong-jun;Lü Ya-qing;WANG Yan-ling;CAO Xue;SUN Tian-shu;HUANG San-wen;WU Yao-yao;College of Horticulture,Northwest A&F University;Genome Analysis Laboratory of the Ministry of Agriculture,Agricultural Genomics Institute,Chinese Academy of Agricultural Sciences;Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province/Horticulture Research Institute,Sichuan Academy of Agricultural Sciences;Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture,Sino-Dutch Joint Laboratory of Horticultural Genomics,Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences;The AGISCAAS-YNNU Joint Academy of Potato Sciences,Yunnan Normal University;Institute of Vegetables and Flowers,Shandong Academy of Agricultural Sciences/Shandong Province Key Laboratory for Biology of Greenhouse Vegetables/Shandong Branch of National Improvement Center for Vegetables;

【Institution】

College of Horticulture,Northwest A&F University;Genome Analysis Laboratory of the Ministry of Agriculture,Agricultural Genomics Institute,Chinese Academy of Agricultural Sciences;Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province/Horticulture Research Institute,Sichuan Academy of Agricultural Sciences;Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture,Sino-Dutch Joint Laboratory of Horticultural Genomics,Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences;The AGISCAAS-YNNU Joint Academy of Potato Sciences,Yunnan Normal University;Institute of Vegetables and Flowers,Shandong Academy of Agricultural Sciences/Shandong Province Key Laboratory for Biology of Greenhouse Vegetables/Shandong Branch of National Improvement Center for Vegetables;

【Abstract】

Tomato(Solanum lycopersicum) stress resistance and fruit total soluble solid(TSS) content have changed dramatically during selective breeding, and transcriptome variation has played a critical role in this rewiring. However, the single tomato reference genome impedes characterization of whole-transcriptome variation during domestication and breeding at the population level. Here, we constructed a pan-transcriptome of orange-stage tomato fruit, and investigated global expression presence/absence variation(e PAV) and differentially expressed genes(DEGs) based on RNA sequencing(RNA-seq) data from 399 tomato accessions. A total of 7 181 genes absent from the reference genome were identified, 6 122 of which were e PAV genes during tomato domestication and breeding including resistance genes such as late blight resistance gene PIM_DN29746_c0_g3_i1 and peroxidase P7-like gene PIM_DN30274_c0_g2_i1. In addition, 3 629 genes were significantly differentially expressed during tomato selection, among which 19 genes were associated with the reduced fruit TSS content of modern tomato cultivars, including LIN5, TIV1, and seven novel sugar transporter genes. Our results indicate that natural and artificial selection greatly shaped the tomato transcriptome, thereby altering the fruit TSS content and resistance to abiotic and biotic stresses.

【Keywords】

tomato;;pan-transcriptome;;ePAV;;DEG;;domestication;;breeding

References

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Springer Journals Database

Total: 15 articles

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  • [2] S. E.Husain;C.James;R.Shields;Christine H.Foyer, Manipulation of fruit sugar composition but not content in Lycopersicon esculentum fruit by introgression of an acid invertase gene from Lycopersicon pimpinellifolium, New Phytologist,
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  • [4] Wingenter, Karina;Schulz, Alexander;Wormit, Alexandra;Wic, Stefan;Trentmann, Oliver;Hoermiller, Imke I;Heyer, Arnd G;Marten, Irene;Hedrich, Rainer;Neuhaus, H Ekkehard, Increased Activity of the Vacuolar Monosaccharide Transporter TMT1 Alters Cellular Sugar Partitioning, Sugar Signaling, and Seed Yield in Arabidopsis1[OA], Plant Physiology,

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