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中国农学通报 ›› 2018, Vol. 34 ›› Issue (15): 85-88.doi: 10.11924/j.issn.1000-6850.casb17040152

所属专题: 园艺

• 生物技术科学 • 上一篇    下一篇

桑树不同倍性杂交后代桑叶品质性状的遗传特性

王振江,唐翠明,戴凡炜,肖更生,罗国庆   

  1. 广东省农业科学院蚕业与农产品加工研究所 广州 510610,广东省农业科学院蚕业与农产品加工研究所 广州 510610,广东省农业科学院蚕业与农产品加工研究所 广州 510610,广东省农业科学院蚕业与农产品加工研究所 广州 510610,广东省农业科学院蚕业与农产品加工研究所 广州 510610
  • 收稿日期:2017-04-25 修回日期:2017-06-12 接受日期:2017-06-23 出版日期:2018-05-29 发布日期:2018-05-29
  • 通讯作者: 罗国庆
  • 基金资助:
    现代农业产业技术体系专项“国家蚕桑产业技术体系”(CARS-22);广州市产学研协同创新重大专项“特色蔬菜桑叶菜品种选育及产业化 示范”(201704020026);广东省科技基础条件建设领域“桑果种质资源鲜食特性鉴评与新品种选育研究”(2015A030302042);广州市产学研协同创新 重大专项“都市型农业适用桑果新品种选育与示范推广”(201508020044);广东省农业科学院院长基金项目“果桑种质资源遗传多样性分析及核心种 质的构建”(201523)。

Inheritance Characteristics of Leaf Quality Traits of Different Ploidy Mulberry Varieties’Crossed Progenies

  • Received:2017-04-25 Revised:2017-06-12 Accepted:2017-06-23 Online:2018-05-29 Published:2018-05-29

摘要: 为分析桑树杂交后代桑叶品质性状的遗传特性,对种质创新和品种遗传改良提供材料、技术和理论支持,本研究以2个不同倍性桑树杂交亲本和组合后代群体为材料,通过对桑叶中水分、灰分、可溶性糖、粗蛋白、粗纤维、多酚类物质、黄酮类物质含量及体外总抗氧化能力等指标的测定,研究了桑叶品质性状的遗传倾向。研究结果表明:2个组合所有杂交后代不同性状遗传差异较大,其中桑叶中水分和灰分含量2个性状变异系数小于10%,遗传相对稳定,而可溶性糖、粗蛋白、粗纤维、多酚类、黄酮类物质含量及体外总抗氧化能力、清除.OH能力等变异系数较大,遗传多样性丰富,在群体中选择特异性状单株具有很大潜力。2个杂交组合后代群体中桑叶营养物质(水分、灰分、可溶性糖、粗蛋白和粗纤维)含量均值均小于相应亲本均值;活性物质(多酚类、黄酮类)含量及体外抗氧化能力(总抗氧化能力、清除.OH能力)均值均高于相应亲本均值,对杂交后代进行优良单株筛选可获得较高的遗传增益。综合分析杂交后代桑叶品质性状的遗传特性,可为桑树种质创新和品种遗传改良提供材料、技术和理论支持。

关键词: 副猪嗜血杆菌, 副猪嗜血杆菌, 毒素蛋白, HipA蛋白, 生物信息学

Abstract: The objective is to analyze the leaf quality traits’inheritance characteristics, and provide technical and theoretical basis for germplasm innovation and genetic improvement of mulberry. Two mulberry cross combinations of different ploidy and their parents were used to study the genetic tendency of some leaf quality traits, and main nutritive materials’contents, bioactive materials’contents and anti-oxidation activity weredetermined and analyzed. The results showed that there were great differences among genetic parameters of hybrid progeny group, the inheritance characteristics of water content and ash content were relatively stable. The other quality characteristics, such as solid content, protein content, crude fiber content, phenolic compounds content, flavonoids compounds content, total antioxidant capacity and scavenging hydroxyl radical capacity had great genetic variation. Nutrients contents of hybrid progenies were smaller than those of their parents, while active substances contents and antioxidant activity of hybrid progenies were higher than those of their parents. Higher genetic gain of active substances contents and antioxidant activity should be obtained by selecting superior individuals from those hybrid progenies.