Resistance Identification of Tree Peony Cultivars of Different Flowering Time to Gray Mold Pathogen Botrytis cinerea

in HortScience

Tree peonies are valuable ornamental plants and are widely cultivated in China and many other countries. Gray mold caused by Botrytis cinerea is an increasingly severe disease in Luoyang of China and seriously affects the ornamental value of tree peonies both in the open air and in greenhouses. However, the resistance of different tree peony cultivars to B. cinerea remains unknown. In this study, 15 tree peony cultivars belonging to three different flowering times were evaluated for resistance to B. cinerea by detached leaf assay measure. Results showed that the resistance of early-flowering peonies was stronger than that of later flowering peonies. Moreover, the correlation between flowering time and resistance of tree peonies was extremely significant (P < 0.01). The information obtained in this study can provide theoretical basis both for further exploring the resistance genes of tree peony to B. cinerea and for the prevention and controlling of the gray mold.

Contributor Notes

This study was sponsored by the Natural Science Foundation of Henan Province (no. 182300410043), Henan Science and Technology Planning Project (no. 182102110202), and the National Natural Science Foundation of China (no. U1604105).

These authors contributed equally to this work.

Corresponding author. E-mail: yueetian@haust.edu.cn.

Article Sections

Article Figures

  • View in gallery

    Symptoms on leaves of different tree peony cultivars after 4 d of inoculation by gray mold pathogen B. cinerea. (A) The early-flowering tree peony cultivar Luoyang Red; (B) the middle-flowering tree peony cultivar The Eighteenth; (C) the late-flowering tree peony cultivar Purple peony.

  • View in gallery

    Disease index of the 15 tree peony cultivars under detached leaf assay. E1 to E5 are five tree peony cultivars of early-flowering time (Five Continents, Xiangyang Red, Luoyang Red, Sheng Dai, Golden Island); M1 to M5 are five tree peony cultivars of middle-flowering time (Two Qiaos, The Eighteenth, Hu Red, Hai Huang, Hua You); L1 to L5 are five tree peony cultivars of late-flowering time (White Lion King, Purple peony, Changshou Le, Wan-Hua Wei, Fu-Shou Si).

Article References

  • BaiG.Q.GuoH.W.ZhaoN.LiS.F.ZhangY.2018The complete chloroplast genome of Paeonia rockii (Paeoniaceae), an endangered endemic species to ChinaConserv. Genet. Resour.10453456

    • Search Google Scholar
    • Export Citation
  • ChenS.N.2011Preliminary study on peony gray-mold and root rot in greenhouse in Beijing. Beijing For. Univ. M. Agr. Thesis (in Chinese)

  • ChengF.Y.2007Advances in the breeding of tree peonies and a cultivar system for the cultivar groupIntl. J. Plant Breed.189104

  • FangZ.D.1998Research methods of plant disease. China Agr. Press Beijing (in Chinese)

  • FlierW.G.KroonL.HermansenA.van RaaijH.M.G.SpeiserB.TammL.FuchsJ.G.LambionJ.RazzaghianJ.AndrivonD.WilcocksonS.LeifertC.2007Genetic structure and pathogenicity of populations of Phytophthora infestans from organic potato crops in France, Norway, Switzerland and the United KingdomPlant Pathol.56562572

    • Search Google Scholar
    • Export Citation
  • HouX.G.GuoQ.WeiW.Q.GuoL.L.GuoD.L.ZhangL.2018Screening of genes related to early and late flowering in tree peony based on bulked segregant RNA sequencing and verification by quantitative real-time PCRMolecules23689

    • Search Google Scholar
    • Export Citation
  • LiuS.M.CheZ.P.ChenG.Q.2016Multiple-fungicide resistance to carbendazim, diethofencarb, procymidone, and pyrimethanil in field isolates of Botrytis cinerea from tomato in Henan Province, ChinaCrop Prot.845661

    • Search Google Scholar
    • Export Citation
  • VleeshouwersV.G.A.A.RaffaeleS.VossenJ.ChampouretN.OlivaR.SegretinM.E.RietmanH.CanoL.M.LokossouA.KesselG.PelM.A.KamounS.2011Understanding and exploiting late blight resistance in the age of effectorsAnnu. Rev. Phytopathol.49507531

    • Search Google Scholar
    • Export Citation
  • WangY.M.MaX.J.FanC.X.2017Study on the difference of flowering time of different cultivars of tree peonyJ. Green Sci. Technol.7147149(in Chinese)

    • Search Google Scholar
    • Export Citation
  • YangR.X.LiuP.WangZ.H.SongG.D.2017Identification of gray mold pathogen on tree peony Paeonia suffruticosa in LuoyangJ. Plant Prot.44623629(in Chinese)

    • Search Google Scholar
    • Export Citation
  • YuanJ.H.ChengF.Y.ZhouS.L.2012Genetic structure of the Tree Peony (Paeonia rockii) and the Qinling mountains as a geographic barrier driving the fragmentation of a large populationPLoS One7E34955

    • Search Google Scholar
    • Export Citation
  • ZhangG.R.2008Study on the relations between flower stages of peony cultivar population with different cultivars in Central Plains and their other biological characters. J. Anhui Agr. Sci. 36:8562–8563 8578 (in Chinese)

Article Information

Google Scholar

Related Content

Article Metrics

All Time Past Year Past 30 Days
Abstract Views 209 209 29
Full Text Views 28 28 3
PDF Downloads 22 22 7