Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management
The simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (<i>Triticum aestivum</i> L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, t...
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MDPI AG
2021-05-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/10/5/1058 |
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| author | Junjie Ma Yonggui Xiao Lingling Hou Yong He |
| author_facet | Junjie Ma Yonggui Xiao Lingling Hou Yong He |
| author_sort | Junjie Ma |
| collection | DOAJ |
| description | The simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (<i>Triticum aestivum</i> L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, the complex mechanisms of genotype, management, and growing season, and the negative correlation between PC and GY complicate the simultaneous improvement of PC and GY under low-input management. To identify favorable genotypes for PC and GY under low-input management, this study used 209 wheat varieties, including strong gluten, medium-strong gluten, medium gluten, weak gluten, winter, semi-winter, weak-spring, and spring types, which has been promoted from the 1980s to the 2010s. Allelic genotyping, performed using kompetitive allele-specific polymerase chain reaction (KASP) technology, found 69 types of GY-PC allelic combinations in the tested materials. Field trials were conducted with two growing season treatments (2018–2019 and 2019–2020) and two management treatments (conventional management and low-input management). Multi-environment analysis of variance showed that genotype, management, and growing season had extremely substantial effects on wheat GY and PC, respectively, and the interaction of management × growing season also had extremely significant effects on wheat GY. According to the three-sigma rule of the normal distribution, the GY of wheat varieties <i>Liangxing 66</i> and <i>Xinmai 18</i> were stable among the top 15.87% of all tested materials with high GY, and their PC reached mean levels under low-input management, but also stably expressed high GY and high PC under conventional management, which represents a great development potential. These varieties can be used as cultivars of interest for breeding because <i>TaSus1-7A</i>, <i>TaSus1-7B</i>, <i>TaGW2-6A</i>, and <i>TaGW2-6B</i>, which are related to GY, and <i>Glu-B3</i>, which is related to PC, carry favorable alleles, among which Hap-1/2, the allele of <i>TaSus1-7A</i>, and Glu-B3b/d/g/i, the allele of <i>Glu-B3</i>, can be stably expressed. Our results may be used to facilitate the development of high-yielding and high-quality wheat varieties under low-input management, which is critical for sustainable food and nutrition security. |
| first_indexed | 2024-03-10T11:31:30Z |
| format | Article |
| id | doaj.art-34e3849425a24310b291369a6a3781dd |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T11:31:30Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
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| series | Foods |
| spelling | doaj.art-34e3849425a24310b291369a6a3781dd2023-11-21T19:11:58ZengMDPI AGFoods2304-81582021-05-01105105810.3390/foods10051058Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input ManagementJunjie Ma0Yonggui Xiao1Lingling Hou2Yong He3Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaInstitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaSchool of Advanced Agricultural Sciences, Peking University, Beijing 100871, ChinaInstitute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaThe simultaneous improvement of protein content (PC) and grain yield (GY) in bread wheat (<i>Triticum aestivum</i> L.) under low-input management enables the development of resource-use efficient varieties that combine high grain yield potential with desirable end-use quality. However, the complex mechanisms of genotype, management, and growing season, and the negative correlation between PC and GY complicate the simultaneous improvement of PC and GY under low-input management. To identify favorable genotypes for PC and GY under low-input management, this study used 209 wheat varieties, including strong gluten, medium-strong gluten, medium gluten, weak gluten, winter, semi-winter, weak-spring, and spring types, which has been promoted from the 1980s to the 2010s. Allelic genotyping, performed using kompetitive allele-specific polymerase chain reaction (KASP) technology, found 69 types of GY-PC allelic combinations in the tested materials. Field trials were conducted with two growing season treatments (2018–2019 and 2019–2020) and two management treatments (conventional management and low-input management). Multi-environment analysis of variance showed that genotype, management, and growing season had extremely substantial effects on wheat GY and PC, respectively, and the interaction of management × growing season also had extremely significant effects on wheat GY. According to the three-sigma rule of the normal distribution, the GY of wheat varieties <i>Liangxing 66</i> and <i>Xinmai 18</i> were stable among the top 15.87% of all tested materials with high GY, and their PC reached mean levels under low-input management, but also stably expressed high GY and high PC under conventional management, which represents a great development potential. These varieties can be used as cultivars of interest for breeding because <i>TaSus1-7A</i>, <i>TaSus1-7B</i>, <i>TaGW2-6A</i>, and <i>TaGW2-6B</i>, which are related to GY, and <i>Glu-B3</i>, which is related to PC, carry favorable alleles, among which Hap-1/2, the allele of <i>TaSus1-7A</i>, and Glu-B3b/d/g/i, the allele of <i>Glu-B3</i>, can be stably expressed. Our results may be used to facilitate the development of high-yielding and high-quality wheat varieties under low-input management, which is critical for sustainable food and nutrition security.https://www.mdpi.com/2304-8158/10/5/1058bread wheatprotein contentgrain yieldgenetic dissectionlow-input management |
| spellingShingle | Junjie Ma Yonggui Xiao Lingling Hou Yong He Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management Foods bread wheat protein content grain yield genetic dissection low-input management |
| title | Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management |
| title_full | Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management |
| title_fullStr | Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management |
| title_full_unstemmed | Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management |
| title_short | Combining Protein Content and Grain Yield by Genetic Dissection in Bread Wheat under Low-Input Management |
| title_sort | combining protein content and grain yield by genetic dissection in bread wheat under low input management |
| topic | bread wheat protein content grain yield genetic dissection low-input management |
| url | https://www.mdpi.com/2304-8158/10/5/1058 |
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