Back to Search
Start Over
Effects of TaPHS1 and TaMKK3-A Genes on Wheat Pre-Harvest Sprouting Resistance
- Source :
- Agronomy, Vol 8, Iss 10, p 210 (2018), Agronomy, Volume 8, Issue 10
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- Pre-harvest sprouting (PHS) constrains wheat production worldwide by reducing both wheat grain yield and end-use quality. TaPHS1 on wheat chromosome 3AS and TaMKK3-A on chromosome 4AL are two cloned genes with major effects on PHS resistance and they are independent from grain color (GC). In this study, we used marker-assisted backcrossing (MAB) to introgress TaPHS1 and TaMKK3-A from two PHS resistant sources&mdash<br />&lsquo<br />Tutoumai A&rsquo<br />and &lsquo<br />AUS1408&prime<br />&mdash<br />into a sprouting-susceptible white wheat line, NW97S186. Progeny were tested in four environments to investigate individual and combined effects of those two genes. TaPHS1 significantly reduced PHS and its effect on PHS varied with environments and gene sources. In contrast, the TaMKK3-A gene also significantly reduced PHS but its effectiveness was influenced by environments. The two genes had additive effects on PHS resistance, indicating pyramiding those two quantitative trait lici (QTLs) could increase PHS resistance. The additive effects were greater in a mild environment, such as a greenhouse, than in a dry and hot environment during maturation.
- Subjects :
- 0106 biological sciences
0301 basic medicine
inorganic chemicals
Triticum aestivum
TaMKK3-A
Quantitative trait locus
Biology
01 natural sciences
lcsh:Agriculture
03 medical and health sciences
fluids and secretions
Gene
pre-harvest sprouting
Resistance (ecology)
TaPHS1
lcsh:S
Chromosome
food and beverages
equipment and supplies
White (mutation)
combined genetic effect
Horticulture
030104 developmental biology
Pre-harvest sprouting
Backcrossing
bacteria
Agronomy and Crop Science
010606 plant biology & botany
Sprouting
Subjects
Details
- Language :
- English
- ISSN :
- 20734395
- Volume :
- 8
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Agronomy
- Accession number :
- edsair.doi.dedup.....26941c51548e2e6f5cd5d0e900ce084f