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ACTA HORTICULTURAE SINICA ›› 2014, Vol. 41 ›› Issue (10): 1993-2000.

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Identification of Fruit Cell Source of Graft Chimera‘Zaohong’Navel Orange and Analysis of Soluble Sugars,Organic Acids and Aromas of Fruit

WU Ju-xun1,XIAO Hui-ling2,WANG Xiao-hua1,and YI Hua-lin1,*   

  1. 1College of Horticulture and Forestry Science,Huazhong Agricultural University,the Education Ministry Key Laboratory of Horticultural Plant Biology,Wuhan 430070,China;2 College of Urban Construction,Hubei Engineering University,Xiaogan,Hubei 432000,China
  • Received:2014-07-23 Online:2014-10-25 Published:2014-10-25

Abstract: ‘Zaohong’navel orange[Citrus sinensis(L.)Osbeck + C. unshiu Marc.] is a graft chimaera from‘Robertson’navel orange[C. sinensis(L.)Osbeck] and‘Guoqing 1’satsuma mandarin(C. unshiu Marc.). The cell sources of leaf,juice sac,segment wall and albedo of‘Zaohong’navel orange were analyzed using SSR and CpSSR. Gas chromatography(GC)and headspace solid-phase microextraction–GC–MS(HS–SPME–GC–MS)were used to measure the content of soluble sugars and organic acids in the pulps of‘Zaohong’navel orange and its grafting parents,and aromas in the peels and pulps of these three materials,respectively. Results revealed that,juice sac and segment wall of ‘Zaohong’navel orange contained two genotype cells from two parents,the content of organic acids in its pulp was significantly lower than that in the pulps of two parents,the aromas in the peel were basically the samewith those in the peel of‘Robertson’navel orange,however,the aromas in the pulp were different from those of two parents.

Key words: navel orange, graft chimaera, SSR, CpSSR, soluble sugar, organic acid, aroma

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