Related Experiment Video

Updated: Oct 3, 2025

A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals

A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals

Published on: March 13, 2011

Study on population structure of kiwifruit and GWAS for hairiness character

Shimao Zheng¹, Yuexing Wang², Dong Qu¹

¹Shaanxi University of Technology, Hanzhong, Shaanxi Province 723001, China; Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi Province 723001, China; QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C, Hanzhong, Shaanxi Province 723001, China; Qinba State Key Laboratory of Biological Resources and Ecological Environment, Hanzhong, Shaanxi Province 723001, China.

|February 17, 2022

Abstract

Background:

A total of 74,936 SNPs were employed to carry out population structure and genome-wide association studies and post-GWAS for hairiness character of the fifty-six samples including thirty-six Actinidia chinensis var. deliciosa, eighteen A. chinensis var. chinensis, and two A. polygama in the light of morphological observations.

Results:

The percentage of heterozygous sites of A. chinensis var. deliciosa is higher than that of A. chinensis var. chinensis, which could be one of the reasons for A. chinensis var. deliciosa high disease resistance. Fifty-six samples were divided into two subgroups, in which the genetic distance, ranged from 0.17 to 0.99, according to their genetic divergence. Analysis of molecular variance shows that the frequency of genetic variations within the population is 83.53% and 16.47% between populations. F_st between the two populations is 0.14, and N_m is 1.60. Set at α ≤ 0.05, a total of 327 SNPs and 260 haplotypes were related to the hairiness character. A total of 246 proteins were annotated using GO and KEGG analyses, which indicated the membrane-related genes and stress-resistant metabolic pathways are related to the hairiness character of leaves, stems, and peels of kiwifruit. Protein interaction analysis showed that DNA-directed RNA polymerase was an important node protein that interacted with many proteins.

Conclusions:

The genetic basic in the fifty-six genotypes was rich. The results of clustering and morphological observations are not completely consistent, indicating the hairiness character play an important role in the classification of kiwifruit, in which two A. polygama were clustered together with those of A. chinensis var. chinensis. Phylogeny and haplotype analysis showed that the evolution of A. chinensis var. chinensis is later than that of A. chinensis var. deliciosa in A. chinesis. The loss of hairiness character on leaves, stems and peels of A. chinensis var. chinensis compare with A. chinensis var. deliciosa, which is also the result of its poor resistance.

Keywords:

Actinidia chinensis GO GWAS Hairiness character KEGG PPI Population structure SNPs

More Related Videos

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology

Published on: June 25, 2014

Large-Scale Multi-Omics Genome-Wide Association Studies Mo-GWAS: Guidelines for Sample Preparation and Normalization

Large-Scale Multi-Omics Genome-Wide Association Studies Mo-GWAS: Guidelines for Sample Preparation and Normalization

Published on: July 27, 2021

Related Concept Videos

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...

What is Population Genetics?

What is Population Genetics?

A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.

Incomplete Dominance

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.

Accessory Structures of the Skin: Hair and Hair Follicles

Accessory Structures of the Skin: Hair and Hair Follicles

Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...

Epistasis

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...

Accessory Structures of the Skin: Hair Growth and Types

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...

Articles linked to this work by shared authors, journal, and citation graph.

A magnetic-plasmonic SERS biosensor for detection of circular RNA toward tumor diagnosis.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2026

Binary-solvent engineering of Cu-based MOF derived nanoporous carbon within anti-swelling hydrogels for ultrasensitive electrochemical sensing.

Chemical communications (Cambridge, England)·2026

Stage-dependent lipid remodeling during traditional Zhenba bacon processing: Insights from untargeted lipidomics and explainable machine learning.

Food chemistry·2026

Effects of Dietary Crude Protein Level on Growth Performance, Immune Function, and Serum Metabolic Profile in Weaned Piglets.

Animals : an open access journal from MDPI·2026

Safety and Feasibility of Bedside Electrical Impedance Tomography With Hypertonic Saline Contrast for Assessing Pulmonary Perfusion in Mechanically Ventilated Children With Acute Respiratory Distress Syndrome: A Pilot Study.

Critical care explorations·2026

Red-blue monochromatic and composite light withering modulates flavor and aroma profiles of white tea: A combined GC-IMS, E-nose, HPLC and sensory analysis.

Food chemistry: X·2026

See all related articles