[1]何旭东,郑纪伟,王宇,等.柳树种质核DNA含量的流式测定[J].江苏林业科技,2021,48(01):1-6.[doi:10.3969/j.issn.1001-7380.2021.01.001]
　He Xudong,Zheng Jiwei,Wang Yu,et al.Evaluation of nuclear DNA content in willow germplasm by flow cytometry[J].Journal of Jiangsu Forestry Science &Technology,2021,48(01):1-6.[doi:10.3969/j.issn.1001-7380.2021.01.001]
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柳树种质核DNA含量的流式测定()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第48卷
期数:
2021年01期
页码:
1-6
栏目:
试验研究
出版日期:
2021-03-05

文章信息/Info

Title:
Evaluation of nuclear DNA content in willow germplasm by flow cytometry
文章编号:
1001-7380（2021）01-0001-06
作者:
何旭东1; 2; 郑纪伟1; 2; 王宇1; 3; 教忠意1; 2; 诸葛强3
1. 江苏省林业科学研究院，江苏 南京 211153;
2. 江苏省农业种质资源保护与利用平台柳树资源圃，江苏 南京 211153;
3. 南京林业大学，江苏 南京 210037;
Author(s):
He Xudong1; 2;  Zheng Jiwei1; 2;  Wang Yu1; 3;  Jiao Zhongyi1; 2;  Zhuge Qiang3
1. Jiangsu Academy of Forestry, Nanjing 211153, China;
2.Willow Nursery of the Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 211135, China;
3.Nanjing Forestry University, Nanjing 210037, China
关键词:
柳树; 流式细胞术; DNA含量; 基因组大小
Keywords:
Salix sp;  Flow cytometry;  Nuclear DNA content;  Genome size
分类号:
Q946.22.3；S792.12
DOI:
10.3969/j.issn.1001-7380.2021.01.001
文献标志码:
A
摘要:
核DNA含量（C值）是物种生物学特性的重要特征之一。为探明柳树不同种质间核DNA含量及变化规律，该研究以柳树14个自然种和8个品种为材料，利用水稻和大豆为内标，基于流式细胞仪检测并分析了每份种质的核DNA含量（1C值）。结果表明，22份柳树种质核DNA含量1C值变化范围为0.38—0.90 pg。14个自然种中，龙爪柳核DNA含量1C值最大，为0.67 pg，蒿柳核DNA含量1C值最小，为0.38 pg。8个品种中，苏柳932核DNA含量1C值最大，为0.90 pg，苏柳1053核DNA含量最小，为0.39 pg。多重比较及方差分析表明：柳树大部分种质个体间核DNA含量1C值存在显著差异（P< 0.05），且不同类型乔木组和灌木组间存在极显著差异（P<0.01）。该研究结果不但可丰富柳属植物C值数据库，还可为柳属系统发育及基因组学研究奠定基础。
Abstract:
The nuclear DNA amount (C value) is a significant feature of biological characters for species. In order to evaluating the DNA contents and variation patterns among different willow germplasm, each 1C value for 14 nature species and 8 varieties was detected and analyzed based on flow cytometry (FCM) using rice and soybean as internal reference. The results demonstrated that the nuclear DNA contents of 22 germplasm ranged from 0.38 to 0.90 pg. Among 14 nature species, the largest 1C value with 0.67 pg was found in Salix matsudana f. tortusoa and the smallest 1C value with 0.38 pg was screened in S. viminalis. Among 8 varieties, S. × jiangsuensis ‘J932’ had the largest 1C value with 0.90 pg and S. × jiangsuensis ‘J1053’ had the smallest 1C value with 0.39 pg. Furthermore, there were significant differences among individuals of most willow germplasm (P<0.05) and extremely significant differences between tree willow and shrub willow groups (P<0.01). This study can provide novel resources for C value database of willow and can lay a foundation for future research of phylogeny and genomics in willow.

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备注/Memo

备注/Memo:
收稿日期：2020-12-14;修回日期：2020-12-21
基金项目：国家自然科学基金项目“基于高通量测序技术的钻天柳系统发育与分子进化研究”（31670662）；创新能力建设计划(科技设施类)——省属公益类科研院所自主科研经费“江苏省林业科学研究院自主科研项目”(BM2018022)
作者简介：何旭东(1981- )，男，江苏句容人，博士。主要从事林木遗传育种研究。E-mail：hxd_519@163.com。
更新日期/Last Update: 2021-03-25