1
|
Signatures for torque variation in wheat dough structure are affected by enzymatic treatments and heating. Food Chem 2020; 316:126357. [PMID: 32062577 DOI: 10.1016/j.foodchem.2020.126357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/25/2020] [Accepted: 02/03/2020] [Indexed: 02/06/2023]
Abstract
Molecular interactions in dough are poorly defined but affect final product usage. By monitoring changes in torque as dough is formed, we identified 80-85 °C as a gateway stage determining dough collapse during the mixing/heating process. We propose that this phenomenon is a diagnostic signature linked to integral features of dough complexes formed by some wheat varieties but not others. We found the dough at 80-85 °C was stabilized by increasing the starting bowl temperature (before a standard linear increase in temperature) of the mixing process and demonstrated the significance of specific macromolecular interactions that are formed early in the mixing process. Enzymes including papain, alpha-amylase, glucose oxidase and phytase stabilized dough structure to facilitate transition through the gateway temperatures between 80 and 85 °C. Our results show that if the dough initially formed a protein-starch complex that was too large, instability and collapse of the structure can occur later.
Collapse
|
2
|
Nirmal RC, Furtado A, Rangan P, Henry RJ. Fasciclin-like arabinogalactan protein gene expression is associated with yield of flour in the milling of wheat. Sci Rep 2017; 7:12539. [PMID: 28970511 PMCID: PMC5624953 DOI: 10.1038/s41598-017-12845-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/14/2017] [Indexed: 12/14/2022] Open
Abstract
A large portion of the global wheat crop is milled to produce flour for use in the production of foods such as bread. Pressure to increase food supplies sustainably can be address directly by reducing post-harvest losses during processes such as flour milling. The recovery of flour in the milling of wheat is genetically determined but difficult to assess in wheat breeding due to the requirement for a large sample. Here we report the discovery that human selection for altered expression of putative cell adhesion proteins is associated with wheats that give high yields of flour on milling. Genes encoding fasciclin-like arabinogalactan proteins are expressed at low levels in high milling wheat genotypes at mid grain development. Thirty worldwide wheat genotypes were grouped into good and poor millers based flour yield obtained from laboratory scale milling of mature seeds. Differentially expressed genes were identified by comparing transcript profiles at 14 and 30 days post anthesis obtained from RNA-seq data of all the genotypes. Direct selection for genotypes with appropriate expression of these genes will greatly accelerate wheat breeding and ensure high recoveries of flour from wheat by resulting in grains that break up more easily on milling.
Collapse
Affiliation(s)
- Ravi C Nirmal
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, St Lucia, Qld, Australia
| | - Agnelo Furtado
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, St Lucia, Qld, Australia
| | - Parimalan Rangan
- Division of Genomic Resources, ICAR-National Bureau of Plant Genetic Resources, New Delhi, 110012, India
| | - Robert J Henry
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, St Lucia, Qld, Australia.
| |
Collapse
|
3
|
Ishikawa G, Nakamura K, Ito H, Saito M, Sato M, Jinno H, Yoshimura Y, Nishimura T, Maejima H, Uehara Y, Kobayashi F, Nakamura T. Association mapping and validation of QTLs for flour yield in the soft winter wheat variety Kitahonami. PLoS One 2014; 9:e111337. [PMID: 25360619 PMCID: PMC4215981 DOI: 10.1371/journal.pone.0111337] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/23/2014] [Indexed: 11/19/2022] Open
Abstract
The winter wheat variety Kitahonami shows a superior flour yield in comparison to other Japanese soft wheat varieties. To map the quantitative trait loci (QTL) associated with this trait, association mapping was performed using a panel of lines from Kitahonami's pedigree, along with leading Japanese varieties and advanced breeding lines. Using a mixed linear model corrected for kernel types and familial relatedness, 62 marker-trait associations for flour yield were identified and classified into 21 QTLs. In eighteen of these, Kitahonami alleles showed positive effects. Pedigree analysis demonstrated that a continuous pyramiding of QTLs had occurred throughout the breeding history of Kitahonami. Linkage analyses using three sets of doubled haploid populations from crosses in which Kitahonami was used as a parent were performed, leading to the validation of five of the eight QTLs tested. Among these, QTLs on chromosomes 3B and 7A showed highly significant and consistent effects across the three populations. This study shows that pedigree-based association mapping using breeding materials can be a useful method for QTL identification at the early stages of breeding programs.
Collapse
Affiliation(s)
- Goro Ishikawa
- NARO Tohoku Agricultural Research Center, Morioka, Iwate, Japan
- * E-mail: (GI); (T. Nakamura)
| | - Kazuhiro Nakamura
- NARO Tohoku Agricultural Research Center, Morioka, Iwate, Japan
- NARO Kyusyu Okinawa Agricultural Research Center, Chikugo, Fukuoka, Japan
| | - Hiroyuki Ito
- NARO Tohoku Agricultural Research Center, Morioka, Iwate, Japan
| | - Mika Saito
- NARO Tohoku Agricultural Research Center, Morioka, Iwate, Japan
| | - Mikako Sato
- Kitami Agricultural Experiment Station, Hokkaido Research Organization, Tokoro-gun, Hokkaido, Japan
- Central Agricultural Experiment Station, Hokkaido Research Organization, Yubari-gun, Hokkaido, Japan
| | - Hironobu Jinno
- Kitami Agricultural Experiment Station, Hokkaido Research Organization, Tokoro-gun, Hokkaido, Japan
| | - Yasuhiro Yoshimura
- Kitami Agricultural Experiment Station, Hokkaido Research Organization, Tokoro-gun, Hokkaido, Japan
| | - Tsutomu Nishimura
- Kitami Agricultural Experiment Station, Hokkaido Research Organization, Tokoro-gun, Hokkaido, Japan
- Kamikawa Agricultural Experiment Station, Hokkaido Research Organization, Kamikawa-gun, Hokkaido, Japan
| | | | - Yasushi Uehara
- Nagano Agricultural Experiment Station, Suzaka, Nagano, Japan
| | - Fuminori Kobayashi
- National Institute of Agrobiological Sciences, Kannondai, Tsukuba, Japan
| | - Toshiki Nakamura
- NARO Tohoku Agricultural Research Center, Morioka, Iwate, Japan
- * E-mail: (GI); (T. Nakamura)
| |
Collapse
|
5
|
Verbyla AP, Cullis BR, Thompson R. The analysis of QTL by simultaneous use of the full linkage map. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2007; 116:95-111. [PMID: 17952402 DOI: 10.1007/s00122-007-0650-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2006] [Accepted: 09/17/2007] [Indexed: 05/20/2023]
Abstract
An extension of interval mapping is presented that incorporates all intervals on the linkage map simultaneously. The approach uses a working model in which the sizes of putative QTL for all intervals across the genome are random effects. An outlier detection method is used to screen for possible QTL. Selected QTL are subsequently fitted as fixed effects. This screening and selection approach is repeated until the variance component for QTL sizes is not statistically significant. A comprehensive simulation study is conducted in which map uncertainty is included. The proposed method is shown to be superior to composite interval mapping in terms of power of detection of QTL. There is an increase in the rate of false positive QTL detected when using the new approach, but this rate decreases as the population size increases. The new approach is much simpler computationally. The analysis of flour milling yield in a doubled haploid population illustrates the improved power of detection of QTL using the approach, and also shows how vital it is to allow for sources of non-genetic variation in the analysis.
Collapse
Affiliation(s)
- Arūnas P Verbyla
- School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, SA, Australia.
| | | | | |
Collapse
|