1
|
Trubacheeva NV, Pershina LA. Problems and possibilities of studying malting quality in barley using molecular genetic approaches. Vavilovskii Zhurnal Genet Selektsii 2021; 25:171-177. [PMID: 34901715 PMCID: PMC8627870 DOI: 10.18699/vj21.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/24/2020] [Accepted: 10/26/2020] [Indexed: 11/19/2022] Open
Abstract
About one-third of the world’s barley crop is used for malt production to meet the needs of the brewing
industry. In this regard, the study of the genetic basis of malting quality traits and the breeding of malting barley
varieties that are adaptive to their growing conditions are relevant throughout the world, particularly in the Russian Federation, where the cultivation and use of foreign malting varieties of barley prevails. The main parameters
of malting quality (artificially germinated and dried barley grains) are malt extract, diastatic power, Kolbach index,
viscosity, grain protein, wort β-glucan, free amino nitrogen, and soluble protein content. Most of these components
are under the control of quantitative trait loci (QTLs) and are affected by environmental conditions, which complicates their study and precise localization. In addition, the phenotypic assessment of malting quality traits requires
elaborate, expensive phenotypic analyses. Currently, there are more than 200 QTLs associated with malting parameters, which were identified using biparental mapping populations. Molecular markers are widely used both for
mapping QTL loci responsible for malting quality traits and for performing marker-assisted selection (MAS), which,
in combination with conventional breeding, makes it possible to create effective strategies aimed at accelerating
the process of obtaining new promising genotypes. Nevertheless, the MAS of malting quality traits faces a series of
difficulties, such as the low accuracy of localization of QTLs, their ineffectiveness when transferred to another genetic background, and linkage with undesirable traits, which makes it necessary to validate QTLs and the molecular
markers linked to them. This review presents the results of studies that used MAS to improve the malting quality of
barley, and it also considers studies that searched for associations between genotype and phenotype, carried out
using GWAS (genome-wide association study) approaches based on the latest achievements of high-throughput
genotyping (diversity array technology (DArT) and single-nucleotide polymorphism markers (SNPs)).
Collapse
Affiliation(s)
- N V Trubacheeva
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Kurchatov Genomics Center of ICG SB RAS, Novosibirsk, Russia
| | - L A Pershina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Kurchatov Genomics Center of ICG SB RAS, Novosibirsk, Russia
| |
Collapse
|
2
|
Duke SH, Henson CA, Vinje MA, Walling JG, Bockelman HE. Comparisons of Modern United States and Canadian Malting Barley Cultivars with Those from Pre-Prohibition: V. Bmy1 Intron III Alleles and Grain β-Amylase Activity and Thermostability. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2019. [DOI: 10.1080/03610470.2018.1546110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Stanley H. Duke
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, U.S.A
| | - Cynthia A. Henson
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, U.S.A
- United States Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, Madison, Wisconsin, U.S.A
| | - Marcus A. Vinje
- United States Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, Madison, Wisconsin, U.S.A
| | - Jason G. Walling
- United States Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, Madison, Wisconsin, U.S.A
| | - Harold E. Bockelman
- United States Department of Agriculture-Agricultural Research Service, Small Grains and Potato Germplasm Research Unit, Aberdeen, Idaho, U.S.A
| |
Collapse
|
3
|
Duke SH, Vinje MA, Henson CA. Tracking Amylolytic Enzyme Activities during Congress Mashing with North American Barley Cultivars: Comparisons of Patterns of Activity and β-Amylases with DifferingBmy1Intron III Alleles and Correlations of Amylolytic Enzyme Activities. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2018. [DOI: 10.1094/asbcj-2012-0131-01] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Marcus A. Vinje
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Cereal Crops Research Unit (CCRU), Madison, WI
| | - Cynthia A. Henson
- USDA-ARS CCRU and Department of Agronomy, University of Wisconsin, Madison
| |
Collapse
|
4
|
Duke SH, Vinje MA, Henson CA. Comparisons of Amylolytic Enzyme Activities and β-Amylases with DifferingBmy1Intron III Alleles to Sugar Production during Congress Mashing with North American Barley Cultivars. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2018. [DOI: 10.1094/asbcj-2012-0906-01] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Stanley H. Duke
- Department of Agronomy, University of Wisconsin, Madison, WI
| | - Marcus A. Vinje
- United States Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, Madison, WI
| | - Cynthia A. Henson
- United States Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, and Department of Agronomy, University of Wisconsin, Madison, WI
| |
Collapse
|
5
|
Duke SH, Henson CA. Tracking the Progress of Wort Sugar Production during Congress Mashing with North American Barley Cultivars and Comparisons to Wort Osmolyte Concentrations and Malt Extract. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2018. [DOI: 10.1094/asbcj-2011-0829-01] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Stanley H. Duke
- Department of Agronomy, University of Wisconsin, Madison, WI
| | - Cynthia A. Henson
- Department of Agronomy, University of Wisconsin, Madison, WI
- U.S. Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, Madison
| |
Collapse
|
6
|
Ferreira JR, Faria BF, Comar M, Delatorre CA, Minella E, Pereira JF. Is a non-synonymous SNP in the HvAACT1 coding region associated with acidic soil tolerance in barley? Genet Mol Biol 2017; 40:480-490. [PMID: 28486573 PMCID: PMC5488463 DOI: 10.1590/1678-4685-gmb-2016-0225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/19/2016] [Indexed: 11/22/2022] Open
Abstract
The barley HvAACT1 gene codes for a citrate transporter associated with tolerance to acidic soil. In this report, we describe a single nucleotide polymorphism (SNP) in the HvAACT1 coding region that was detected as T-1,198 (in genotypes with lower root growth on acidic soil) or G-1,198 (greater root growth) and resulted in a single amino acid change (L/V-172). Molecular dynamic analysis predicted that HvAACT1 proteins with L or V-172 were stable, although the substitution led to structural changes within the protein. To evaluate the effect of the SNP on tolerance to acidic soil, barley accessions were separated into haplotypes based on the presence of a 1 kb insertion in the HvAACT1 promoter and a 21 bp insertion/deletion. These markers and the SNP-1,198 allowed the identification of five haplotypes. Short-term soil experiments showed no difference in root growth for most of the accessions containing the 21 bp insertion and T or G-1,198. In contrast, genotypes showing both the 21 bp deletion and G-1,198, with one of them having the 1 kb insertion, showed greater root growth. These results indicate that the SNP was not advantageous or deleterious when genotypes from the same haplotype were compared. The occurrence of the SNP was highly correlated with the 21 bp insertion/deletion that, together with the 1 kb insertion, explained most of the barley tolerance to acidic soil.
Collapse
Affiliation(s)
- Jéssica Rosset Ferreira
- Departamento de Plantas de Lavoura, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
| | - Bruna Franciele Faria
- Programa Multicêntrico de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal de São João del-Rey, 35501-296, Divinópolis, MG, Brazil
| | - Moacyr Comar
- Programa Multicêntrico de Pós-Graduação em Bioquímica e Biologia Molecular, Universidade Federal de São João del-Rey, 35501-296, Divinópolis, MG, Brazil
| | - Carla Andréa Delatorre
- Departamento de Plantas de Lavoura, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
| | | | - Jorge Fernando Pereira
- Embrapa Trigo, 99001-970, Passo Fundo, RS, Brazil.,Embrapa Gado de Leite, 36038-330, Juiz de Fora, MG, Brazil
| |
Collapse
|
7
|
Looseley ME, Bayer M, Bull H, Ramsay L, Thomas W, Booth A, De La Fuente Canto C, Morris J, Hedley PE, Russell J. Association Mapping of Diastatic Power in UK Winter and Spring Barley by Exome Sequencing of Phenotypically Contrasting Variety Sets. FRONTIERS IN PLANT SCIENCE 2017; 8:1566. [PMID: 28955358 PMCID: PMC5601066 DOI: 10.3389/fpls.2017.01566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/28/2017] [Indexed: 05/02/2023]
Abstract
Diastatic Power (DP) is an important quality trait for malt used in adjunct brewing and distilling. Substantial genetic variation for DP exists within UK elite barley cultivars, but breeding progress has been slow due to the limited demand, compared to the overall barley market, and difficulties in assessing DP. Estimates of DP (taken from recommended and national list trials between 1994 and 2012) from a collection of UK elite winter and spring varieties were used to identify contrasting sets of high and low DP varieties. DNA samples were pooled within sets and exome capture sequencing performed. Allele frequency estimates of Single Nucleotide Polymorphisms (SNPs) identified from the sequencing were used to identify genomic locations associated with differences in DP. Individual genotypes were generated from a set of custom KASP assays, both within sets and in a wider germplasm collection, to validate allele frequency estimates and marker associations with DP. QTL identified regions previously linked to variation in DP as well as novel associations. QTL colocalised with a number of genes annotated as having a diastase related function. Results indicate that winter barley is more genetically diverse for genes influencing DP. The marker assays produced by this work represent a resource that is available for immediate use by barley breeders in the production of new high DP varieties.
Collapse
Affiliation(s)
- Mark E. Looseley
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
- *Correspondence: Mark E. Looseley
| | - Micha Bayer
- Information and Computational Sciences, The James Hutton InstituteDundee, Scotland
| | - Hazel Bull
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | - Luke Ramsay
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | - William Thomas
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | - Allan Booth
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | | | - Jenny Morris
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | - Pete E. Hedley
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| | - Joanne Russell
- Cell and Molecular Sciences, The James Hutton InstituteDundee, Scotland
| |
Collapse
|
8
|
Shavrukov Y. Comparison of SNP and CAPS markers application in genetic research in wheat and barley. BMC PLANT BIOLOGY 2016; 16 Suppl 1:11. [PMID: 26821936 PMCID: PMC4895257 DOI: 10.1186/s12870-015-0689-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND Barley and bread wheat show large differences in frequencies of Single Nucleotide Polymorphism (SNP) as determined from genome-wide studies. These frequencies have been estimated as 2.4-3 times higher in the entire barley genome than within each diploid genomes of wheat (A, B or D). However, barley SNPs within individual genes occur significantly more frequently than quoted. Differences between wheat and barley are based on the origin and evolutionary history of the species. Bread wheat contains rarer SNPs due to the double genetic 'bottle-neck' created by natural hybridisation and spontaneous polyploidisation. Furthermore, wheat has the lowest level of useful SNP-derived markers while barley is estimated to have the highest level of polymorphism. RESULTS Different strategies are required for the development of suitable molecular markers in these cereal species. For example, SNP markers based on high-throughput technology (Infinium or KASP) are very effective and useful in both barley and bread wheat. In contrast, Cleaved Amplified Polymorphic Sequences (CAPS) are more widely and successfully employed in small-scale experiments with highly polymorphic genetic regions containing multiple SNPs in barley, but not in wheat. However, preliminary 'in silico' search databases for assessing the potential value of SNPs have yet to be developed. CONCLUSIONS This mini-review summarises results supporting the development of different strategies for the application of effective SNP and CAPS markers in wheat and barley.
Collapse
Affiliation(s)
- Yuri Shavrukov
- School of Agriculture, Food and Wine, University of Adelaide, Adelaide, Australia.
- Department of Biological Sciences, Flinders University, Adelaide, Australia.
| |
Collapse
|
9
|
Gong X, Westcott S, Zhang XQ, Yan G, Lance R, Zhang G, Sun D, Li C. Discovery of novel Bmy1 alleles increasing β-amylase activity in Chinese landraces and Tibetan wild barley for improvement of malting quality via MAS. PLoS One 2013; 8:e72875. [PMID: 24019884 PMCID: PMC3760831 DOI: 10.1371/journal.pone.0072875] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Accepted: 07/15/2013] [Indexed: 11/29/2022] Open
Abstract
China has a large barley germplasm collection which has not been well characterized and is therefore underutilized. The Bmy1 locus encoding the β-amylase enzyme on chromosome 4H has been well characterized in the worldwide barley germplasm collections due to its importance in the malting and brewing industry. The Bmy1 locus was chosen as an indicator to understand genetic potential for improvement of malting quality in Chinese landraces and Tibetan wild barley. The genetic diversity of 91 barley accessions was assessed using allele specific Multiplex-ready molecular markers. Eight accessions were further sequenced, based on the Multiplex-ready marker diversity for Bmy1 in the germplasm. Six of the eight accessions clustered together in a unique group, and showed similarities to ‘Haruna Nijo’, wild barley accession PI296896 and ‘Ashqelon’. Sequence comparisons with the known Bmy1 alleles identified not only the existing 13 amino acid substitutions, but also a new substitution positioned at A387T from a Chinese landrace W127, which has the highest β-amylase activity. Two new alleles/haplotypes namely Bmy1-Sd1c and Bmy1-Sd5 were designated based on different amino acid combinations. We identified new amino acid combination of C115, D165, V233, S347 and V430 in the germplasm. The broad variation in both β-amylase activity and amino acid composition provides novel alleles for the improvement of malting quality for different brewing styles, which indicates the high potential value of the Chinese landraces and Tibetan wild barley.
Collapse
Affiliation(s)
- Xue Gong
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan City, China
- Department of Agriculture and Food Western Australia, Perth City, Australia
- School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia, Perth City, Australia
| | - Sharon Westcott
- Department of Agriculture and Food Western Australia, Perth City, Australia
- Western Australia State Agricultural Biotechnology Centre, Murdoch University, Perth City, Australia
| | - Xiao-Qi Zhang
- Western Australia State Agricultural Biotechnology Centre, Murdoch University, Perth City, Australia
| | - Guijun Yan
- School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia, Perth City, Australia
| | - Reg Lance
- Department of Agriculture and Food Western Australia, Perth City, Australia
| | - Guoping Zhang
- Faculty of Agriculture, Life and Environmental Sciences, Zhejiang University, Hangzhou City, China
| | - Dongfa Sun
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan City, China
- * E-mail: (DS); (CL)
| | - Chengdao Li
- Department of Agriculture and Food Western Australia, Perth City, Australia
- Western Australia State Agricultural Biotechnology Centre, Murdoch University, Perth City, Australia
- * E-mail: (DS); (CL)
| |
Collapse
|
10
|
Liu XD, Chen HB, Tong Q, Li XY, Zhu MJ, Wu ZF, Zhou R, Zhao SH. Molecular characterization of caveolin-1 in pigs infected with Haemophilus parasuis. THE JOURNAL OF IMMUNOLOGY 2011; 186:3031-46. [PMID: 21282513 DOI: 10.4049/jimmunol.0902687] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Caveolin-1 (Cav1) plays a critical role in the invasion of pathogenic microbes into host cells, yet little is known about porcine Cav1. In this study, we provide the molecular characterization of Cav1 in pigs following stimulation with LPS/polyinosinic-polycytidylic acid as well as during infection with Haemophilus parasuis. The porcine Cav1 gene is 35 kb long and is located at SSC18q21; two isoforms (Cav1-α and Cav1-β) are produced by alternative splicing. Three point mutations were identified in the coding region of the gene, two of which were significantly associated with nine immunological parameters in Landrace pigs, including the Ab response against porcine reproductive and respiratory syndrome virus and lymphocyte counts. Promoter analysis indicated that NF-κB activates both Cav1 transcripts, but the forkhead gene family specifically regulates Cav1-β in the pig. Porcine Cav1 is expressed ubiquitously, with Cav1-α more abundantly expressed than Cav1-β in all tissues investigated. Basal expression levels of Cav1 in PBMCs are relatively similar across different pig breeds. LPS and polyinosinic-polycytidylic acid markedly induced the expression of Cav1 in porcine kidney-15 cells in vitro, likely through NF-κB activation. Pigs infected with H. parasuis exhibited decreased expression of Cav1, particularly in seriously impaired organs such as the brain. This study provides new evidence that supports the use of Cav1 as a potential diagnostic and genetic marker for disease resistance in animal breeding. In addition, our results suggest that Cav1 may be implicated in the pathogenesis of Glasser's disease, which is caused by H. parasuis.
Collapse
Affiliation(s)
- Xiang-Dong Liu
- Key Laboratory of Agricultural Animal Genetics and Breeding, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Duke SH, Henson CA. Tracking the Progress of Congress Mashing with Osmolyte Concentration and Malt Extract Value in North American Barley Cultivars and Relationships between Wort Osmolyte Concentration, Malt Extract Value, and ASBC Measures of Malt Quality. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2011. [DOI: 10.1094/asbcj-2010-1210-01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Stanley H. Duke
- Department of Agronomy, University of Wisconsin, Madison, WI
| | - Cynthia A. Henson
- U.S. Department of Agriculture-Agricultural Research Service, Cereal Crops Research Unit, and Department of Agronomy, University of Wisconsin, Madison, WI
| |
Collapse
|
12
|
Vinje MA, Willis DK, Duke SH, Henson CA. Differential RNA expression of Bmy1 during barley seed development and the association with β-amylase accumulation, activity, and total protein. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2011; 49:39-45. [PMID: 20974538 DOI: 10.1016/j.plaphy.2010.09.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 09/24/2010] [Accepted: 09/27/2010] [Indexed: 05/30/2023]
Abstract
The objective of this study was to determine if developing barley (Hordeum vulgare L.) seeds had differences in β-amylase 1 (Bmy1) mRNA accumulation, β-amylase (EC 3.2.1.2) activity, β-amylase protein accumulation, and total protein levels during late seed development from genotypes with different Bmy1 intron III alleles. Two North American malting barley cultivars (Hordeum vulgare ssp. vulgare) were chosen to represent the Bmy1.a and Bmy1.b alleles and, due to limited Bmy1 intron III allele variation in North American cultivars, two wild barleys (Hordeum vulgare ssp. spontaneum) were chosen to represent the Bmy1.c and Bmy1.d alleles. Wild barleys Ashqelon (Bmy1.c) and PI 296897 (Bmy1.d) had 2.5- to 3-fold higher Bmy1 mRNA levels than cultivars Legacy (Bmy1.a) and Harrington (Bmy1.b). Levels of Bmy1 mRNA were not significantly different between cultivated or between wild genotypes. In all four genotypes Bmy1 mRNA levels increased from 17 to 19 days after anthesis (DAA) and remained constant from 19 to 21 DAA. Ashqelon and PI 296897 had more β-amylase activity on a fresh weight basis than Legacy and Harrington at all developmental stages. β-Amylase protein levels increased from 17 DAA to maturity in all genotypes. Total protein in grains from wild genotypes was significantly higher than cultivated genotypes at all developmental stages. Higher levels of total protein in Ashqelon and PI 296897 could explain their higher levels of β-amylase activity, when expressed on a fresh weight basis. When β-amylase activities are expressed on a protein basis there are no statistical differences between the wild and cultivated barleys at maturity.
Collapse
Affiliation(s)
- Marcus A Vinje
- University of Wisconsin-Madison, Department of Agronomy, Madison, WI 53706, USA
| | | | | | | |
Collapse
|
13
|
Haplotyping barley bmy1 using the SNaPshot assay. Biologia (Bratisl) 2010. [DOI: 10.2478/s11756-009-0218-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
14
|
Schmalenbach I, Pillen K. Detection and verification of malting quality QTLs using wild barley introgression lines. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2009; 118:1411-27. [PMID: 19255740 PMCID: PMC2845881 DOI: 10.1007/s00122-009-0991-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Accepted: 02/09/2009] [Indexed: 05/18/2023]
Abstract
A malting quality quantitative trait locus (QTL) study was conducted using a set of 39 wild barley introgression lines (hereafter abbreviated with S42ILs). Each S42IL harbors a single marker-defined chromosomal segment from the wild barley accession 'ISR 42-8' (Hordeum vulgare ssp. spontaneum) within the genetic background of the elite spring barley cultivar 'Scarlett' (Hordeum vulgare ssp. vulgare). The aim of the study was (1) to verify genetic effects previously identified in the advanced backcross population S42, (2) to detect new QTLs, and (3) to identify S42ILs exhibiting multiple QTL effects. For this, grain samples from field tests in three different environments were subjected to micro malting. Subsequently, a line x phenotype association study was performed with the S42ILs in order to localize putative QTL effects. A QTL was accepted if the trait value of a particular S42IL was significantly (P < 0.05) different from the recurrent parent as a control, either across all tested environments or in a particular environment. For eight malting quality traits, altogether 40 QTLs were localized, among which 35 QTLs (87.5%) were stable across all environments. Six QTLs (15.0%) revealed a trait improving wild barley effect. Out of 36 QTLs detected in a previous advanced backcross QTL study with the parent BC(2)DH population S42, 18 QTLs (50.0%) could be verified with the S42IL set. For the quality parameters alpha-amylase activity and Hartong 45 degrees C, all QTLs assessed in population S42 were verified by S42ILs. In addition, eight new QTL effects and 17 QTLs affecting two newly investigated traits were localized. Two QTL clusters harboring simultaneous effects on eight and six traits, respectively, were mapped to chromosomes 1H and 4H. In future, fine-mapping of these QTL regions will be conducted in order to shed further light on the genetic basis of the most interesting QTLs.
Collapse
Affiliation(s)
- Inga Schmalenbach
- Barley Genetics Research Group, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany
| | - Klaus Pillen
- Barley Genetics Research Group, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany
- Present Address: Institute of Agricultural and Nutritional Sciences, Martin-Luther-University Halle-Wittenberg, Ludwig-Wucherer-Str. 2, 06108 Halle/Saale, Germany
| |
Collapse
|
15
|
The Properties and Genetics of Barley Malt Starch Degrading Enzymes. ADVANCED TOPICS IN SCIENCE AND TECHNOLOGY IN CHINA 2009. [DOI: 10.1007/978-3-642-01279-2_6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|