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Home > Archive>Volume 24, Issue 5, 2023 >1344-1354. DOI:10.13430/j.cnki.jpgr.20230209002
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Genetic Diversity of Fruit Volatile Compounds in 36 Peach Varieties
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Affiliation:

1.Zhengzhou Fruit Research Institute， Chinese Academy of Agricultural Sciences/National Horticulture Germplasm Resources Center/Henan Key Laboratory Fruit and Cucurbit Biology， Zhengzhou 450000;2.College of Horticulture & Forestry Sciences， Huazhong Agricultural University/Key Laboratory for Biology of Horticultural Plants， Ministry of Education， Wuhan 430070

Fund Project:

China Modern Agricultural Industrial Technology System（CARS-30-1-04）；Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences（CAAS-ASTIP-ZFRI-01）；Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine（ZYYCXTD-D-202005）

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    Abstract:

    To investigate the genetic diversity of volatile compounds in peach fruits， 36 peach varieties were analyzed by headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry， followed by ANOVA， coefficient of variation， correlation analysis， principal component analysis and partial least squares-discriminant analysis. The results showed that 77 volatile compounds were detected in 36 peach varieties， including terpenoids， aldehydes， esters， lactones， alcohols and ketones. In addition， the coefficient of variation in volatile compounds of 36 peach varieties ranged from 18% to 390%， indicating that the enrichment of volatile organic compounds diversity in different peach varieties. Based on the correlation analysis， 11 and 10 pairwise-traits were found with correlation and significant correlation， respectively， among which several traits including flesh color， variety type， stone adherence to flesh and flesh texture were correlated with aroma substance content. PCA analysis could clarify white-fleshed and yellow-fleshed peaches. Using variable importance in projection （VIP） >1 and P < 0.05 as criteria， nine characteristic volatile substances were identified and distinguishable in yellow-fleshed peaches from white-fleshed peaches， among which theaspirane was found with the highest VIP.

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History
  • Received:February 09,2023
  • Revised:April 02,2023
  • Online: August 30,2023
  • Published: August 30,2023
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