Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (6): 1183-1196.doi: 10.16420/j.issn.0513-353x.2020-0510

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Comparative Analysis of‘Jinyan'and‘Hongyang'Kiwifruit Transcriptomes

LI Guisheng()   

  1. Department of Biological Resources and Environmental Sciences,Jishou University,the Plant Resources Protection and Utilization Hunan Province College Key Laboratory,Jishou,Hunan 416000,China
  • Received:2020-12-28 Revised:2021-04-06 Online:2021-06-25 Published:2021-07-08
  • Contact: LI Guisheng


Transcriptome comparison found that preferentially expressed genes(PEGs)were mainly involved in metabolism in the yellow-fleshed ripened‘Jinyan'kiwifruit,while they were generally related to development in red-fleshed‘Hongyang'. Meanwhile,PEGs from the peripheral part consisting of the peel and the outer layer of kiwifruits flesh and the remained core flesh part were related to their own hallmark function namely photosynthesis and nutrient reservoir,respectively. Kiwifruit possessed relatively abundant MYB genes of R2R3 type,and nearly all types of MYB genes were expressed in fruits.MYB-A72 transcript could only be found in‘Hongyang',and it possessed extremely high level of expression in the core flesh part,and additionally it was located within the clade including MYB genes for anthocyanin biosynthesis. Expression pattern clustering analysis revealed thatbHLH-B36 and WD-A126 might participate in forming the MYB-bHLH-WD40 regulatory complex,and that CHI2,FLS1,and CYP98A might be the targets under its regulation.

Key words: kiwifruit, anthocyanins, MYB, gene family, transcriptomic analysis

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