Variance, Inter-Trait Correlation, Heritability, and Marker-Trait Association of Rubber Yield-Related Characteristics in Taraxacum kok-saghyz

Rubber dandelion ( Taraxacum kok-saghyz or TK) is a potential industrial crop species that can produce high-quality natural rubber in its roots. The present study estimated trait variance, inter-trait correlation, and entry-mean heritability for rubber yield-related traits and analyzed associations...

Full description

Saved in:
Bibliographic Details
Published in:Plant molecular biology reporter 2018-08, Vol.36 (4), p.576-587
Main Authors: Luo, Zinan, Iaffaldano, Brian J., Zhuang, Xiaofeng, Fresnedo-Ramírez, Jonathan, Cornish, Katrina
Format: Article
Language:English
Subjects:
Association analysis
Bioinformatics
Biomedical and Life Sciences
Correlation analysis
Heritability
Life Sciences
Metabolomics
Natural rubber
Original Paper
Phenotypes
Plant Breeding/Biotechnology
Plant Sciences
Polymorphism
Progeny
Proteomics
Rubber
Single-nucleotide polymorphism
Taraxacum
Yield
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Rubber dandelion ( Taraxacum kok-saghyz or TK) is a potential industrial crop species that can produce high-quality natural rubber in its roots. The present study estimated trait variance, inter-trait correlation, and entry-mean heritability for rubber yield-related traits and analyzed associations between these traits and 42 single-nucleotide polymorphism (SNP) markers. A trial was conducted at three environments to assess a biparental progeny of 66 F 1 full-sibs, in a randomized complete block design (RCBD) with two replicates. Significant correlations, broad ranges of variation, and significant genotypic variance components were identified for five measured phenotypic traits. Moderate broad-sense heritability on an entry-mean heritability estimates (0.51–0.61) were obtained for five rubber yield-related traits based on a 1-year trial. However, the broad-sense heritability in general sense ranged from 0.09 to 0.15 depending on the trait. Two linkage groups were identified. Association analysis identified seven significant marker-trait gene associations, and only one marker was related to two traits. The implications of trait correlations and heritability for selection and improvement are discussed.
ISSN:0735-9640
1572-9818
DOI:10.1007/s11105-018-1097-8