scholarly journals Detection of QTL for pre-harvest sprouting resistance and grain dormancy in highly sprouting-tolerant wheat

2019 ◽  
Vol 21 (2) ◽  
pp. 115-123
Author(s):  
Tsutomu Nishimura ◽  
Masahiko Mori ◽  
Takahiro Kamada ◽  
Wakana Nakane ◽  
Ikkei Komine ◽  
...  
Keyword(s):  
Grain Dormancy ◽  
Sprouting Resistance

Barley Ant17, encoding flavanone 3-hydroxylase (F3H), is a promising target locus for attaining anthocyanin/proanthocyanidin-free plants without pleiotropic reduction of grain dormancy

Genome ◽  
2015 ◽  
Vol 58 (1) ◽  
pp. 43-53 ◽  
Author(s):  
Eiko Himi ◽  
Shin Taketa
Keyword(s):  
Crop Production ◽  
Stop Codon ◽  
Premature Stop Codon ◽  
Preharvest Sprouting ◽  
Economic Losses ◽  
Recessive Mutations ◽  
Grain Dormancy ◽  
Target Locus ◽  
Promising Target ◽  
Sprouting Resistance

Preharvest sprouting is a serious problem in grain crop production because it causes quality deterioration and economic losses. It is well known that grain colour is closely associated with grain dormancy in wheat; white-grained lines without accumulating proanthocyanidins in testa tend to be more susceptible to preharvest sprouting than red ones. All available white-grained wheat lines are restricted to triple recessive mutations at the R loci (R-A1, R-B1, and R-D1), but barley is known to have 11 independent loci conferring the proanthocyanidin-free grain phenotype. In this study, we evaluated the dormancy levels of anthocyanin/proanthocyanidin-free ant17 mutants. Three ant17 mutants showed the same levels of dormancy as their respective wild types. Sequencing of three independent ant17 alleles detected a point mutation within the coding regions of flavanone-3-hydroxylase (F3H), which are predicted to cause a premature stop codon at different sites. The F3H locus completely cosegregated with the Ant17 position on the chromosome arm 2HL. Expression of the barley F3H gene was observed in pigmented tissues, but not in nonpigmented roots and stems. This result indicates that wheat F3H may be a promising new target locus for breeding white-grained lines with a practical level of preharvest sprouting resistance.

Exploring Molecular Markers of Preharvest Sprouting Resistance Gene Using Wheat Intact Spikes by Association Analysis

2014 ◽  
Vol 40 (10) ◽  
pp. 1725 ◽  
Author(s):  
Yu-Lei ZHU ◽  
Sheng-Xing WANG ◽  
Liang-Xia ZHAO ◽  
De-Xin ZHANG ◽  
Jian-Bang HU ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Resistance Gene ◽  
Association Analysis ◽  
Preharvest Sprouting ◽  
Sprouting Resistance ◽  
Preharvest Sprouting Resistance

scholarly journals Breeding of Buckwheat for Usage of Sprout and Pre-Harvest Sprouting Resistance

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 997
Author(s):  
Tatsuro Suzuki ◽  
Takahiro Hara ◽  
Kenjiro Katsu
Keyword(s):  
Subsequent Growth ◽  
Local Economies ◽  
Cereal Grain ◽  
The World ◽  
New Varieties ◽  
Sprouting Resistance ◽  
Sprout Growth ◽  
Noodle Quality ◽  
Buckwheat Flour

Buckwheat is recognized as an important traditional crop and supports local economies in several regions around the world. Buckwheat is used, for example, as a cereal grain, noodle and bread. In addition, buckwheat is also used as a sprout or a young seedling. For these foods, sprouting is an important characteristic that affects food quality. For foods made from buckwheat flour, pre-harvest sprouting may decrease yield, which also leads to the deterioration of noodle quality. Breeding buckwheat that is resistant to pre-harvest sprouting is therefore required. Germination and subsequent growth are also important characteristics of the quality of sprouts. Although buckwheat sprouts are the focus because they contain many functional compounds, such as rutin, several problems have been noted, such as thin hypocotyls and husks remaining on sprouts. To date, several new varieties have been developed to resolve these quality issues. In this review, we summarize and introduce research on the breeding of buckwheat related to quality, sprouting and subsequent sprout growth.

scholarly journals Transcriptomic profiling of wheat near-isogenic lines reveals candidate genes on chromosome 3A for pre-harvest sprouting resistance

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xingyi Wang ◽  
Hui Liu ◽  
Kadambot H. M. Siddique ◽  
Guijun Yan
Keyword(s):  
Candidate Genes ◽  
Quantitative Trait ◽  
Genomic Region ◽  
Nucleotide Polymorphisms ◽  
Near Isogenic Lines ◽  
Gene Effects ◽  
Isogenic Lines ◽  
Trait Locus ◽  
Grain Yield And Quality ◽  
Sprouting Resistance

Abstract Background Pre-harvest sprouting (PHS) in wheat can cause severe damage to both grain yield and quality. Resistance to PHS is a quantitative trait controlled by many genes located across all 21 wheat chromosomes. The study targeted a large-effect quantitative trait locus (QTL) QPhs.ccsu-3A.1 for PHS resistance using several sets previously developed near-isogenic lines (NILs). Two pairs of NILs with highly significant phenotypic differences between the isolines were examined by RNA sequencing for their transcriptomic profiles on developing seeds at 15, 25 and 35 days after pollination (DAP) to identify candidate genes underlying the QTL and elucidate gene effects on PHS resistance. At each DAP, differentially expressed genes (DEGs) between the isolines were investigated. Results Gene ontology and KEGG pathway enrichment analyses of key DEGs suggested that six candidate genes underlie QPhs.ccsu-3A.1 responsible for PHS resistance in wheat. Candidate gene expression was further validated by quantitative RT-PCR. Within the targeted QTL interval, 16 genetic variants including five single nucleotide polymorphisms (SNPs) and 11 indels showed consistent polymorphism between resistant and susceptible isolines. Conclusions The targeted QTL is confirmed to harbor core genes related to hormone signaling pathways that can be exploited as a key genomic region for marker-assisted selection. The candidate genes and SNP/indel markers detected in this study are valuable resources for understanding the mechanism of PHS resistance and for marker-assisted breeding of the trait in wheat.

Temperature dependence of germinability of wheat (Triticum aestivum L.) grain in relation to pre-harvest sprouting

1984 ◽  
Vol 35 (2) ◽  
pp. 115 ◽  
Author(s):  
DJ Mares
Keyword(s):  
Dry Weight ◽  
Complete Removal ◽  
Triticum Aestivum L ◽  
Treatment Temperature ◽  
Preharvest Sprouting ◽  
Optimum Temperature ◽  
Grain Dormancy ◽  
Lag Period ◽  
Pre Treatment ◽  
Damage Tolerant

Germinability in harvest-mature wheat grain showed a marked dependence on temperature. The optimum temperature for the complete germination of all grains ranged from 20�C for the non-dormant variety, Timgalen, to 10�C for the strongly dormant red wheat RL 4137, whereas the optimum in terms of the shortest lag period ranged from 25� to 15�C for the same varieties. Germinability gradually increased during post-harvest storage and, for after-ripened grain, the optimum temperature for both complete germination and shortest lag period were greater than 30�C. Germinability could also be increased by pre-treating imbibing grains at temperatures of 5�, 10� or in some cases 15�C. This treatment was only effective for grain at moisture contents >25% (dry weight) and the effect was not reversed by redesiccation. The pre-treatment temperature required for maximum germinability decreased with increasing levels of grain dormancy. Complete removal of dormancy required a pre-treatment period of c. 48 h; however, lesser periods gave the shortest lag period in the case of the dormant varieties. The implications of these results for the utilization of dormancy in the development of preharvest sprouting damage tolerant varieties and their subsequent use in practice are discussed.

Drought and high temperature increases preharvest sprouting tolerance in a genotype without grain dormancy

Euphytica ◽  
2005 ◽  
Vol 143 (3) ◽  
pp. 277-283 ◽  
Author(s):  
T. B. Biddulph ◽  
D. J. Mares ◽  
J. A. Plummer ◽  
T. L. Setter
Keyword(s):  
High Temperature ◽  
Preharvest Sprouting ◽  
Grain Dormancy

Factorial cross analysis of pre-harvest sprouting resistance in white wheat

2005 ◽  
Vol 91 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Guo-Liang Jiang ◽  
Shihe Xiao
Keyword(s):  
White Wheat ◽  
Sprouting Resistance

Dissection of genetic components of preharvest sprouting resistance in white wheat

2010 ◽  
Vol 27 (4) ◽  
pp. 511-523 ◽  
Author(s):  
Shubing Liu ◽  
Guihua Bai ◽  
Shibin Cai ◽  
Cuixia Chen
Keyword(s):  
Preharvest Sprouting ◽  
White Wheat ◽  
Genetic Components ◽  
Sprouting Resistance ◽  
Preharvest Sprouting Resistance

scholarly journals Grain dormancy and light quality effects on germination in the model grass Brachypodium distachyon

2011 ◽  
Vol 193 (2) ◽  
pp. 376-386 ◽  
Author(s):  
José M. Barrero ◽  
John V. Jacobsen ◽  
Mark J. Talbot ◽  
Rosemary G. White ◽  
Stephen M. Swain ◽  
...  
Keyword(s):  
Light Quality ◽  
Brachypodium Distachyon ◽  
Grain Dormancy ◽  
Model Grass

scholarly journals Improving preharvest sprouting resistance in durum wheat with bread wheat genes

2017 ◽  
Vol 67 (5) ◽  
pp. 466-471 ◽  
Author(s):  
Keita Kato ◽  
Wakako Maruyama-Funatsuki ◽  
Mikiko Yanaka ◽  
Yusuke Ban ◽  
Kanenori Takata
Keyword(s):  
Durum Wheat ◽  
Bread Wheat ◽  
Preharvest Sprouting ◽  
Sprouting Resistance ◽  
Preharvest Sprouting Resistance
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