CHEN Hui,WANG Huakun,ZHOU Kunjie,et al.The Physiological Characteristics and Genetic Diversity Analysis of Baisha Loquat Resources From Jiangsu Province[J].Northern Horticulture,2015,39(18):1-4.[doi:10.11937/bfyy.201518001]
江苏省白沙枇杷生物学特性及遗传多样性研究
- Title:
- The Physiological Characteristics and Genetic Diversity Analysis of Baisha Loquat Resources From Jiangsu Province
- 文献标志码:
- A
- 摘要:
- 以江苏省太湖常绿果树技术推广中心枇杷种质资源圃收集的20 份白沙枇杷品种的本砧16 年生嫁接树作为试材，对20个白沙枇杷种质资源的9个生物学特性的遗传变异、性状相关性及主成分进行了分析。结果表明：江苏省不同品种的白沙枇杷各生物学特性间存在着较高的遗传变异，变异系数最大的是侧枝长度为44.1%，9个生物学特性变异系数大小依次为侧枝数（44.1%）>侧枝长度（36.1%）>叶柄长度（26.7%）>中心枝长度（25.0%）>侧枝粗度（22.0%）>叶柄宽度（13.1%）>叶片宽度（12.9%）>中心枝粗度（11.9%）>叶片长度（10.5%），各生物学特性之间不是相互独立的，而是存在着较为广泛的联系，相关系数最高的性状是侧枝长度和侧枝粗度（0.83）；主成分分析将白沙枇杷的9个生物学特性划为4个主成分，其累计贡献率为83.58%，高度相关因子的贡献率高达43.72%。
- Abstract:
- With 20 kinds of Baisha Loquat resources of 16-year-old self grafted trees collected from Taihu Technology Promotion Center of Evergreen Fruit Trees of Jiangsu Province as test materials，the genetic variation，character correlation and principal component were studied on 20 kinds of Baisha Loquat resources based on 9 traits.The results showed that abundant variation existed in these traits.The widest variation was found in the number of lateral shoots that had a coefficient of variance of 44.1%，followed by the length of lateral shoots (36.1%)，length of petiole (26.7%)，length of central shoots (25.0%)，thickness of lateral shoots (22.0%)，width of petiole (13.1%)，width of leaf blade (12.9%)，thickness of central shoots (11.9%) and length of leaf blade(10.5%).There were significant correlations among those physiological characteristics．The biggest correlation coefficient between the length of lateral shoots and thickness of lateral shoots was 0.83.Four principle elements were obtained，which contributed over 83.58% of variance，especially the height factor 43.72%.
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备注/Memo
第一作者简介：陈慧（1986-），女，博士，农艺师，研究方向为分子遗传育种。E-mail：fairyjingan@163.com.基金项目：江苏省科技厅自然基金资助项目（BK2011316）；江苏省农业三新工程资助项目（SXGC[2013]093）。