[1]周洁,王保松.雌雄间性柳树自交子代当年生幼苗表型观测[J].江苏林业科技,2021,48(03):19-23.[doi:10.3969/j.issn.1001-7380.2021.03.005]
　Zhou Jie,Wang Baosong.Phenotypic characters in selfing generations of intersex willow[J].Journal of Jiangsu Forestry Science &Technology,2021,48(03):19-23.[doi:10.3969/j.issn.1001-7380.2021.03.005]
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雌雄间性柳树自交子代当年生幼苗表型观测()
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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03期
页码:
19-23
栏目:
试验研究
出版日期:
2021-06-30

文章信息/Info

Title:
Phenotypic characters in selfing generations of intersex willow
文章编号:
1001-7380（2021）03-0019-05
作者:
周洁; 王保松
江苏省林业科学研究院，江苏 南京 211153
Author(s):
Zhou Jie;  Wang Baosong
Jiangsu Academy of Forestry, Nanjing 211153, China
关键词:
雌雄间性; 柳树; 自交; 变异系数; 矮化; 枝条扭曲
Keywords:
Intersex; Willow; Selfing; Coefficient of variation; Dwarf; Branch twist
分类号:
Q944.43；S722.3+3；S792.12
DOI:
10.3969/j.issn.1001-7380.2021.03.005
文献标志码:
A
摘要:
为研究柳树的遗传多样性，以雌雄间性柳树自交子代478个个体为材料，对质量性状和数量性状进行表型特征评价和遗传变异分析。结果表明：柳树自交后质量性状发生了分离，枝条出现直立、弯曲和扭曲的类型，扭曲的比例为18.41%。有托叶的比例为2.3%，株型矮化的占11.72%，叶色、皮色、分枝等都发生了较大的变异。数量性状存在丰富的变异和遗传多样性，叶片长、叶片宽和托叶的变异系数为39%—58%，株高变异系数最大为66%，分布曲线表明叶长、叶宽、株高等呈偏态分布。此研究结果为研究柳树矮化、枝条扭曲等重要性状的解析和基因的定位提供了重要的物质基础，也为柳树的定向育种改良提供了新的途径和方法。
Abstract:
In order to study the genetic diversity of willow, a total of 478 progenies produced by self cross of intersex willow were used to evaluate the genotype and genetic variation for the quantitative characteristics and discrete characters. The results showed that discrete characters were segregated. The branch exhibited upright, bent and twisted. The proportion of twigs twisted was 18.41%, the proportion of stipules appeared was 2.3%, and the rate of plant type dwarfing was 11.72%. The leaf color, branch color and branching showed great variation.There were abundant variation and genetic diversity in quantitative traits. The coefficient of variation of leaf length, width and stipule ranged from 39% to 58%. The maximum variation coefficient of plant height was 66%. The distribution curve showed that leaf length, leaf width and plant height were skewed. The results provide an important material basis for the study of important traits of willow, as well as a new way for the improvement of willow.

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备注/Memo

备注/Memo:
收稿日期：2021-03-15;修回日期：2021-04-19
基金项目：江苏省创新能力建设计划（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）；江苏省农业科技自主创新资金项目“无絮观赏柳树新品种选育”[CX(20)3042]；江苏省林业科技创新与推广项目“生物修复型柳树优良种质创新与栽培技术集成示范”（LYKJ[2020]03）
作者简介：周洁（1986- ），女，江苏宜兴人，副研究员，博士。从事林木遗传育种工作。
更新日期/Last Update: 2021-08-07