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浙江大学学报(农业与生命科学版)  2022, Vol. 48 Issue (5): 653-659    DOI: 10.3785/j.issn.1008-9209.2021.11.021
动物科学与动物医学     
刺参选育群体F5代形态性状与体质量相关性及通径分析
韩莎1(),胡炜1,李成林1(),李文文2,赵斌1,曲红霞3,王琦1,姚琳琳1
1.山东省海洋科学研究院, 山东 青岛 266104
2.莱阳市渔业技术服务中心, 山东 烟台 265200
3.乳山市水产技术推广站, 山东 威海 264500
Correlation and path analyses on morphometric traits and body mass of F5 generation breeding population in sea cucumber (Apostichopus japonicus)
Sha HAN1(),Wei HU1,Chenglin LI1(),Wenwen LI2,Bin ZHAO1,Hongxia QU3,Qi WANG1,Linlin YAO1
1.Marine Science Institute of Shandong Province, Qingdao 266104, Shandong, China
2.Fisheries Technical Service Center of Laiyang City, Yantai 265200, Shandong, China
3.Extension Station of Fishery Technology of Rushan City, Weihai 264500, Shandong, China
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摘要:

为研究刺参选育群体体长(body length, BL)、体宽(body width, BW)等形态性状对体质量(body mass, BM)的影响,随机选取刺参选育群体F5代个体366头(一龄),对刺参体长、体宽、体质量3个性状指标及1个复合形态指标长宽平方根(square root of the length-width, SLW)进行相关性分析和通径分析。结果显示:性状之间的相关系数均达到显著水平。逐步回归分析表明,体宽、SLW与体质量间的回归关系达到极显著水平(P<0.001),因此建立以体宽和SLW为自变量的最优回归方程BM=-16.14+6.70SLW+4.31BW;形态性状对体质量的直接影响为SLW>BW,SLW是影响刺参体质量的主要因素,其通径系数为0.62,体宽主要通过SLW对体质量实现间接作用;从拟合形态性状与体质量的关系可知,最优幂函数方程为BM=0.39SLW2.66R2=0.86,P<0.001),表明该生长阶段为负异速生长模式,形态性状生长明显快于体质量增加。因此,在刺参的选育过程中,当以体质量为选育目标时,应把体宽作为直接选择,同时加强对体长的协同选择。

关键词: 刺参体质量形态性状生长性状通径分析    
Abstract:

In order to explore the relationships between morphometric traits and body mass (BM) of sea cucumber (Apostichopus japonicus), correlation analysis and path analysis were used to obtain the main morphometric traits affecting body mass. Three morphometric traits including body length (BL), body width (BW) and body mass of 366 individuals of F5 generation breeding population at one year old were measured, and one compound index that combined body length and body width to produce the square root of the length-width (SLW) index was calculated. The results showed that the correlation coefficients between morphometric traits and body mass were highly significant. The stepwise regression analysis showed that morphometric traits (SLW and body width) and body mass were significantly positive correlations (P<0.001). Based on path coefficients, the multiple linear regression mode equation on the effects of body mass was established as BM=-16.14+6.70SLW+4.31BW. The morphometric traits that directly affected body mass were SLW>BW, and SLW was the main morphometric trait that significantly affected body mass and its path coefficient was 0.62. Body width had an indirect effect on the body mass via SLW. The fitting relationships between morphometric traits and body mass were expressed as following BM=0.39SLW2.66 (R2=0.86, P<0.001), showing negativeallometry tendency. The results provide valuable information and theoretical guidance for A. japonicus breeding programs. Body width should be selected directly and body length simultaneously, when body mass is the breeding target.

Key words: Apostichopus japonicus    body mass    morphometric traits    growth traits    path analysis
收稿日期: 2021-11-02 出版日期: 2022-11-02
CLC:  S 917.4  
基金资助: 山东省农业良种工程重点项目(2020LZGC015);国家重点研发计划“蓝色粮仓科技创新”重点专项(2018YFD0901602);山东省乡村振兴科技创新提振行动计划项目(2021TZXD008);山东省现代农业产业技术体系刺参产业技术体系育种岗位(SDAIT-22-01)
通讯作者: 李成林     E-mail: shahan_2012@163.com;lcl_xh@hotmail.com
作者简介: 韩莎(https://orcid.org/0000-0002-0125-7612),E-mail:shahan_2012@163.com
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引用本文:

韩莎,胡炜,李成林,李文文,赵斌,曲红霞,王琦,姚琳琳. 刺参选育群体F5代形态性状与体质量相关性及通径分析[J]. 浙江大学学报(农业与生命科学版), 2022, 48(5): 653-659.

Sha HAN,Wei HU,Chenglin LI,Wenwen LI,Bin ZHAO,Hongxia QU,Qi WANG,Linlin YAO. Correlation and path analyses on morphometric traits and body mass of F5 generation breeding population in sea cucumber (Apostichopus japonicus). Journal of Zhejiang University (Agriculture and Life Sciences), 2022, 48(5): 653-659.

链接本文:

https://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2021.11.021        https://www.zjujournals.com/agr/CN/Y2022/V48/I5/653

性状

Trait

最大值

Max.

最小值

Min.

平均值

Mean

峰度

Kurtosis

偏度

Skewness

变异系数

Coefficient of variation (CV)/%

体长 Body length/cm14.542.417.20±2.340.070.3732.50
体宽 Body width/cm8.530.401.76±0.9311.442.4652.84
SLW/cm9.721.143.51±1.132.161.9032.19
体质量 Body mass/g88.170.4614.95±14.186.012.0594.85
表1  刺参各性状的描述性统计结果

性状

Trait

体长

Body length

体宽

Body width

SLW

体质量

Body mass

体长 Body length10.62**0.88**0.71**
体宽 Body width10.93**0.86**
SLW10.88**
体质量 Body mass1
表2  刺参形态性状及体质量间的相关系数

性状

Trait

相关系数

Correlation coefficient

直接通径系数

Direct path coefficient

间接通径系数

Indirect path coefficient

SLW

体宽

Body width

SLW0.88**0.62**00.26
体宽 Body width0.86**0.28**0.580
表3  刺参形态性状对体质量的通径系数

性状

Trait

SLW

体宽

Body width

总决定系数

Total determination coefficient

0.78
SLW0.380.32
体宽 Body width0.08
表4  刺参形态性状对体质量的决定系数

模型

Model

RR2

调整后的R2

Adjusted R2

估算值的标准误

Standard error of the estimate

10.880.780.786.69
20.890.790.796.52
表5  刺参形态性状对体质量的多元回归模型输出结果

模型

Model

未标准化系数

Unstandardized coefficient

标准化系数

Beta

t检验

t test

显著性

Significance

B

标准误

Standard error

1常量 Constant-18.491.00-18.490.00
SLW9.530.270.8835.700.00
2常量 Constant-16.141.11-14.530.00
SLW6.700.690.629.660.00
体宽 Body width4.310.980.284.400.00
表6  刺参形态性状对体质量的多元回归系数输出结果
图1  刺参SLW-体质量关系
图2  刺参体宽-体质量关系
图3  刺参体长-体宽关系
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