Evaluation of genetic variation in high molecular weight glutenin subunits of seed storage protein using landraces of common wheat from Pakistan

Niwa, Katsumasa; Suzuki, Haruo; Tominaga, Tohru; Nasim, Shahzad; Anwar, Rashid; Ogawa, Masahiro; Furuta, Yoshihiko

doi:10.1556/crc.36.2008.2.12

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The frequency of 7+8 was 74.04% in the landraces, which is consistent with the results of other Chinese and Japanese landraces ( Dai et al 2020 , Liu et al 2007 , Nakamura 2000 , Zheng et al 2011 ). In contrast, the major allele in India and Pakistan landrace was 17+18 ( Goel et al 2018 , Niwa et al 2008 ). Two alleles, Glu-B1b (7+8) and Glu-B1c (7+9) appeared most frequently in four commercial wheat cultivation regions.…”

Section: Discussionmentioning

confidence: 89%

Allelic variation and genetic diversity of HMW glutenin subunits in Chinese wheat (<i>Triticum aestivum</i> L.) landraces and commercial cultivars

Wang

Song

et al. 2022

Breed. Sci.

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Wheat landraces have abundant genetic variation at the Glu-1 loci, which is desirable germplasms for genetic enhancement of modern wheat varieties, especially for quality improvement. In the current study, we analyzed the allelic variations of the Glu-1 loci of 597 landraces and 926 commercial wheat varieties from the four major wheat-growing regions in China using SDS-PAGE. As results, alleles Null, 7+8, and 2+12 were the dominant HMW-GSs in wheat landraces. Compared to landraces, the commercial varieties contain higher frequencies of high-quality alleles, including 1, 7+9, 14+15 and 5+10. The genetic diversity of the four commercial wheat populations (alleles per locus (A) = 7.33, percent polymorphic loci (P) = 1.00, effective number of alleles per locus (Ae) = 2.347 and expected heterozygosity (He) = 0.563) was significantly higher than that of the landraces population, with the highest genetic diversity found in the Southwestern Winter Wheat Region population. The genetic diversity of HMW-GS is mainly present within the landraces and commercial wheat populations instead of between populations. The landraces were rich in rare subunits or alleles may provide germplasm resources for improving the quality of modern wheat.

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Section: Discussionmentioning

confidence: 89%

Allelic variation and genetic diversity of HMW glutenin subunits in Chinese wheat (<i>Triticum aestivum</i> L.) landraces and commercial cultivars

Wang

Song

et al. 2022

Breed. Sci.

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“…8, 2 ? 12 was the predominant HMW-GS pattern for wheat landraces (63.3%, 190 out of 300 accessions) from Xinjiang (Table 2), Sichuan (97.8%, 87/89), Tibet (76.4%, 175/229), Yangtze-River regions of China (32.2%, 156/485) (Wei et al 2000;Yan et al 2007;Zheng et al 2011), Japan (57.5%, 100/174) (Nakamura 2000), and also for historical varieties (39.5%, 17/43) from Xinjiang, China, but not for wheat landraces from Pakistan and India (Niwa et al 2008;Goel et al 2018), which were predominant for 2*, 17 ? 18, 2 ?…”

Section: Discussionmentioning

confidence: 98%

“…8, whereas it was 17 ? 18 for wheat landrace from India and Pakistan (Niwa et al 2008;Goel et al 2018). For wheat landraces and improved varieties from different sources, the most frequently occurring Glu-D1 allele was 2 ?…”

Section: Discussionmentioning

confidence: 99%

“…Previous reports showed that null was the major Glu-A1 allele for other Chinese wheat landraces, and also for Japanese and Indian wheat landraces (Nakamura 2000;Wei et al 2000;Yan et al 2007;Zheng et al 2011;Goel et al 2018). However, among the 170 Pakistan wheat landraces, the subunit 2* contributed to the major Glu-A1 allele with a frequency of 53.5% (Niwa et al 2008).The frequently occurring Glu-B1 allele for wheat landraces from China and Japan, and improved wheat varieties from China was 7 ? 8, whereas it was 17 ?…”

Section: Discussionmentioning

confidence: 99%

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Characterization of high- and low-molecular-weight glutenin subunits from Chinese Xinjiang wheat landraces and historical varieties

Dai

Yan

et al. 2020

J Food Sci Technol

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Landraces and historical varieties are necessary germplasms for genetic improvement of modern cereals. Allelic variations at the Glu-1 and Glu-3 loci in 300 common wheat landraces and 43 historical varieties from Xinjiang, China, were evaluated by Sodium-dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and allele-specific molecular markers. Among the materials investigated, three, nine, and seven alleles were identified from the Glu-A1, Glu-B1, and Glu-D1 loci, respectively, and a total of 26 high-molecular-weight glutenin subunit (HMW-GS) combinations were found, of which 18 combinations were identified in landraces and historical varieties. Allelic frequency of HMW-GS combinations null, 7 ? 8, 2 ? 12 was found to be the highest in both the landraces (63.3%) and historical varieties (39.5%). Besides, some distinctive HMW-GS alleles, such as the novel Glu-B1 allele 6.1* ? 8.1* and Glu-D1 alleles 2.6 ? 12, 2.1 ? 10.1, and 5** ? 10 were observed in Xinjiang wheat landraces. Among the Glu-A3 and Glu-B3 loci of landraces and historical varieties, a total of eight and nine alleles were found, respectively. At each locus, two novel alleles were identified. A total of 33 low-molecularweight glutenin subunit (LMW-GS) combinations of Glu-A3 and Glu-B3 were identified, with 31 and 14 combinations occurring in landraces and historical varieties, respectively, but only 10 combinations shared by both of them. As Glu-D1, Glu-A3, and Glu-B3 have highest contribution to the end-use quality and processing properties as compared to Glu-A1, Glu-B1, and Glu-D3 locus, the novel or distinctive HMW-GS and LMW-GS alleles in these loci could potentially be utilized for the improvement in the quality of modern wheat.

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“…These studies are usually centred in those landraces grown in Eastern European countries, such as Hungary (Bedó et al, 1998;Juhász et al, 2003), Slovakia (Francakova and Bojnanska, 2003), Poland (Górny et al, 2006) or Russia (Khlestkina et al, 2004); in Near and Middle Eastern countries, such as Syria (Mirali, 2000), Iran (Bhattacharya et al, 2003), Turkey (Dokuyucu et al, 2004) or Israel (Blum et al, 1987); and in Asian countries such as India (Singh et al, 2007) Pakistan (Niwa et al, 2008) and Japan (Nakamura, 2001). Although studies referred to Mediterranean countries do exist (Nascimento et al, 1998;Guarda et al, 2004;Cartelle et al, 2006), none of them considers Spanish cultivars.…”

Section: Introductionmentioning

confidence: 99%

Evolution of bread-making quality of Spanish bread-wheat genotypes

Aparicio

Ruiz-París

Oliete

et al. 2009

Span. j. agric. res.

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In this study, 36 Spanish wheat genotypes (five modern commercial cultivars, four cultivars introduced after the green revolution and 27 landraces from northwestern Spain) were evaluated. Grain (yield, specific weight, protein content and falling number) and flour (yield, protein content, Zeleny index, wet gluten and gluten index) properties were analyzed. Dough behaviour during mixing (DoughLAB) and handling (alveograph) was also considered. An evolution in grain and flour properties was observed over time. In modern cultivars, grain yield was improved owing to higher grain production. In landraces, higher grain yields were related to larger grain size. Unlike in landraces, an inverse correlation between grain yield and protein content was found in modern cultivars. In addition, because of their high protein quality, modern cultivars surpassed landraces in bread-making properties. Landraces showed considerable variability in protein quality and scored lower curve configuration ratio values than other cultivars with similar strength. Cultivars introduced after the green revolution reached the highest levels of bread-making quality, a feature attributable to their high protein quality.Additional key words: alveograph, biodiversity, landraces, mixing behaviour, Triticum aestivum. Resumen Evolución de la calidad panadera de variedades de trigo cultivadas en EspañaEn este estudio se han evaluado 36 genotipos de trigo cultivados en España (cinco cultivares comerciales actuales, cuatro cultivares introducidos después de la revolución verde y 27 variedades autóctonas del noroeste de España). Se han analizado tanto las características del grano (rendimiento, peso específico, contenido proteico e índice de caída) como las de la harina (rendimiento harinero, contenido proteico, índice de Zeleny, gluten húmedo y gluten seco). También se ha considerado el comportamiento de la masa durante el amasado (DoughLAB) y el manejo de la misma (alveógrafo). Se ha observado una evolución de las características de los granos y las harinas a lo largo del tiempo. En los cultivares modernos se ha observado un incremento del rendimiento en cosecha basado en la mayor producción de granos. Por otro lado, en las variedades autóctonas los mayores rendimientos se relacionaron con un mayor tamaño de grano. Para los cultivares modernos se encontró una correlación inversa entre el rendimiento en grano y el contenido proteico, la cual no fue significativa cuando se analizaron las variedades autóctonas. Los cultivares modernos también mostraron mejores propiedades para los procesos de panificación debido a la mayor calidad de sus proteínas. Las variedades autóctonas presentaron una gran variabilidad en su calidad proteica y un equilibrio más bajo que el mostrado por otras variedades con fuerza similar. Los cultivares introducidos tras la revolución verde mostraron las mejores características panaderas, lo que se relacionó con su alta calidad proteica.Palabras clave adicionales: alveógrafo, biodiversidad, comportamiento en el amasado, Triticu...

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Evaluation of genetic variation in high molecular weight glutenin subunits of seed storage protein using landraces of common wheat from Pakistan

Cited by 5 publications

References 7 publications

Allelic variation and genetic diversity of HMW glutenin subunits in Chinese wheat (<i>Triticum aestivum</i> L.) landraces and commercial cultivars

Allelic variation and genetic diversity of HMW glutenin subunits in Chinese wheat (<i>Triticum aestivum</i> L.) landraces and commercial cultivars

Characterization of high- and low-molecular-weight glutenin subunits from Chinese Xinjiang wheat landraces and historical varieties

Evolution of bread-making quality of Spanish bread-wheat genotypes

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