|Table of Contents|

Analysis on Phenotypic Diversity of Wild Actinidia arguta Fruit in Heilongjiang Province

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年16
Page:
16-23
Research Field:
Publishing date:

Info

Title:
Analysis on Phenotypic Diversity of Wild Actinidia arguta Fruit in Heilongjiang Province
Author(s):
LI Hongli; PANG Hongyang; LI Xue; WANG Peng; SUN Qiang; TAO Shuangyong
(Mudanjiang Branch,Heilongjiang Academy of Forestry Sciences,Mudanjiang，Heilongjiang 157010)
Keywords:
Actinidia arguta Siet.et Zucc.; fruit; phenotypic traits; diversity
PACS:
-
DOI:
10.11937/bfyy.20210023
Abstract:
Ninety-eight wild Actinidia arguta germplasm resources were used as the test materials,the methods included coefficient of variation,diversity index,correlation,principal component and cluster analysis were carried out to study the diversity of fruit phenotypic traits,the variation characteristics and diversity of fruit phenotypic traits of wild A.arguta germplasm resources in Heilongjiang Province were explored,in order to provide a reference for the selection of excellent germplasm and variety breeding of wild A.arguta.The results showed that there were many variation types of eight fruit quality traits,and the variation range of fruit shape,beak shape,flesh color,core color and core cross section shape was large.The Shannon-weaver diversity index (H′) ranged from 0.646 to 1.689,and the diversity index of fruit shape,flesh color and beak shape was higher.Among the seven quantitative traits,the coefficient of variation ranged from 13.82% to 36.34%,the coefficient of variation of single fruit weight was the largest,the coefficient of variation of fruit transverse diameter and fruit lateral diameter was smaller,and the H′ index was 1.353-1.467.The results of correlation analysis showed that there were significant or extremely significant correlations among fruit quantitative traits,and the correlation coefficient between single fruit weight and fruit three diameters was larger.The results of principal component analysis showed that the cumulative contribution rate of the three principal components was 82.322%,which reflected the fruit size and quality index.Combined with correlation and principal component analysis,fruit traits could be used as an important index for wild selection.Cluster analysis showed that 98 resources could be divided into 7 groups.The first and second groups had large fruit size and quality,which could be used as excellent resources for genetic improvement;the third and fourth groups had medium comprehensive characters,which could be used as resources for wild domestication;the fifth group had large fruit,which could be used to cultivate large fruit varieties;the sixth group had long oval fruit,which could be used to cultivate long fruit varieties;the seventh group had red skin and red heart.It could be used as a special resource for breeding new varieties and crossing parents.In conclusion,the phenotypic traits of wild A.arguta fruit in Heilongjiang Province had rich variation types,large variation range and high degree,rich genetic diversity and great breeding potential.

References:

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Last Update: 2021-11-28