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首页> 外文期刊>Euphytica >Inheritance of taste characters and fruit size and number in a diploid Actinidia chinensis (kiwifruit) population
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Inheritance of taste characters and fruit size and number in a diploid Actinidia chinensis (kiwifruit) population

机译：二倍体猕猴桃（猕猴桃）种群的口感特征，果实大小和数量的遗传

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摘要

We investigated the variability and inheritance of taste components and fruit size and number in a seedling population of diploid Actinidia chinensisPlanch. We found significant variation in all characters measured. Narrow-sense heritability estimates were high for vitamin C content, titratable acidity (TA), soluble solids content (SSC), fruit weight and dry matter content (DM), but low for glucose content, quinic acid content, and fruit number per vine. The genetic correlations between sugars (except myo-inositol), acids (except quinic acid), TA, vitamin C content, SSC and DM tended to be positive and moderate to high. However, correlations between these characters and fruit weight tended to be negative and moderate to high. The standardised coefficients (β) of multiple regression showed that SSC was highly dependent on the levels of fructose content, sucrose content and TA. Estimates of relative selection efficiencies (E) suggested that selection using SSC could be an efficient and convenient alternative to direct selection for improvement of sugar levels in kiwifruit. However, selection strategies based on SSC need to take account of its moderate negative correlation with fruit weight. Male and female parents useful for improving acid and sugar composition and fruit size were identified. One family was outstanding, as it combined large fruit size with high levels of SSC and DM.
机译：我们调查了二倍体中华猕猴桃幼苗群体中的味道成分，果实大小和数量的变异性和遗传。我们发现所有测得的字符都存在显着差异。对于维生素C含量，可滴定酸度（TA），可溶性固形物含量（SSC），果实重量和干物质含量（DM），狭义遗传力估算值较高，而对于葡萄糖含量，奎尼酸含量和每棵葡萄藤的果实数，其遗传含量较低。糖（肌醇除外），酸（奎宁酸除外），TA，维生素C含量，SSC和DM之间的遗传相关性呈正相关，且呈中等至高。然而，这些特征与果实重量之间的相关性趋向于负，并且中等至高。多元回归的标准化系数（β）表明，SSC高度依赖于果糖含量，蔗糖含量和TA的水平。相对选择效率的估计值（E）表明，使用SSC进行选择可以替代直接选择以提高猕猴桃糖水平的一种有效且方便的选择。但是，基于SSC的选择策略需要考虑到其与果实重量的中等负相关性。确定了有助于改善酸和糖成分和果实大小的雄性和雌性父母。一个家庭是杰出的，因为它结合了大果实和高水平的南南合作和DM。

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  • 来源
    《Euphytica》 |2004年第2期|185-195|共11页
  • 作者

    C.H. Cheng; A.G. Seal; H.L. Boldingh; K.B. Marsh; E.A. MacRae; S.J. Murphy; A.R. Ferguson;

  • 作者单位

    Te Puke Research Centre RD2 Te Puke The Horticulture and Food Research Institute of New Zealand Ltd.;

    Te Puke Research Centre RD2 Te Puke The Horticulture and Food Research Institute of New Zealand Ltd.;

    Ruakura Research Centre The Horticulture and Food Research Institute of New Zealand Ltd.;

    Mount Albert Research Centre The Horticulture and Food Research Institute of New Zealand Ltd.;

    Mount Albert Research Centre The Horticulture and Food Research Institute of New Zealand Ltd.;

    Te Puke Research Centre RD2 Te Puke The Horticulture and Food Research Institute of New Zealand Ltd.;

    Mount Albert Research Centre The Horticulture and Food Research Institute of New Zealand Ltd.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    acids; Actinidia chinensis; fruit breeding; genetic correlation; heritability; sugars;

    机译：酸;猕猴桃;果实育种;遗传相关;遗传力;糖;

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