Next Article in Journal
Development of Sakon Nakhon Rice Variety for Blast Resistance through Marker Assisted Backcross Breeding
Previous Article in Journal
Prospects for Measurement of Dry Matter Yield in Forage Breeding Programs Using Sensor Technologies
Previous Article in Special Issue
Characterization of Chromosomal Rearrangement in New Wheat—Thinopyrum intermedium Addition Lines Carrying Thinopyrum—Specific Grain Hardness Genes
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Agronomy 2019, 9(2), 66; https://doi.org/10.3390/agronomy9020066

Assessment of Heterosis Based on Genetic Distance Estimated Using SNP in Common Wheat

1,2
,
1,*
and
3,*
1
State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy (Northwest A&F University), Yangling 712100, China
2
Institute of Crop Research, Xinjiang Academy of Agri-Reclamation Sciences, Shihezi 832000, China
3
Department of Geography, College of Science, Shihezi University, Shihezi 832000, China
*
Authors to whom correspondence should be addressed.
Received: 13 January 2019 / Revised: 29 January 2019 / Accepted: 29 January 2019 / Published: 1 February 2019
Full-Text   |   PDF [605 KB, uploaded 1 February 2019]   |  
  |   Review Reports

Abstract

This study assessed the genetic distance (GD) between parental genotypes using single nucleotide polymorphism (SNP) DNA markers and evaluated the correlation between GD and heterosis in common wheat. We examined the performance of parents and hybrids in a field experiment conducted in a randomized block design at a Shihezi location with three replications. Different traits such as the height of the parents and the F1 generation, number of harvested ears, number of grains per panicle, grain weight per panicle, 1000-grain weight, and grain yield were examined. Genotyping using a wheat 90K SNP chip determined the GD between the parents and analyzed the relationship between GD and heterotic performance of hybrids in wheat. Cluster analysis based on GD estimated using SNP chips divided the 20 elite parents into five groups which were almost consistent with the parental pedigree. Correlation analysis showed a significant association between GD and mid-parent heterosis (MPH) of 1000-grain weight. However, GD and high-parent heterosis (HPH) of 1000-grain weight showed no significant correlation. There was a weak correlation between GD and with spikelet number, harvested spikes, and yield at MPH or HPH. Hence, SNP analysis may be utilized in allocating wheat parents to heterotic groups. However, the correlation between SNP-based GD and hybrid performance still remains unclear. View Full-Text
Keywords: genetic distance; heterosis; single nucleotide polymorphism; heterosis prediction genetic distance; heterosis; single nucleotide polymorphism; heterosis prediction
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Nie, Y.; Ji, W.; Ma, S. Assessment of Heterosis Based on Genetic Distance Estimated Using SNP in Common Wheat. Agronomy 2019, 9, 66.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Agronomy EISSN 2073-4395 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top