Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions
The genotypic diversity and genome-wide association study (GWAS) of potato proteins and amino acid content were investigated in two environments: 98 potato accessions in Environment I and 93 in Environment II. Results revealed that aspartic acid was the most abundant amino acid in environment I and...
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MDPI AG
2025-06-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/14/12/2039 |
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| author | Haroon Rasheed Yining Ying Daraz Ahmad Bowen Deng Jinsong Bao |
| author_facet | Haroon Rasheed Yining Ying Daraz Ahmad Bowen Deng Jinsong Bao |
| author_sort | Haroon Rasheed |
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| description | The genotypic diversity and genome-wide association study (GWAS) of potato proteins and amino acid content were investigated in two environments: 98 potato accessions in Environment I and 93 in Environment II. Results revealed that aspartic acid was the most abundant amino acid in environment I and glutamic acid in environment II. The limiting amino acids were cysteine in both environments. The environmental variance accounted for more than 40% of the total variance for all traits except for serine and gamma amino butyric acid (GABA), indicating that potato protein and most amino acids were affected by growing seasons. GWAS identified 78 significant loci associated with potato protein and amino acid contents. The pleiotropic loci, especially those located on chromosomes 6, 9, and 11, provide a strong genetic basis for quality improvement. This study provides genetic insights into potato proteins and amino acid diversity, thereby enhancing molecular breeding for nutritional qualities. |
| format | Article |
| id | doaj-art-2cafba4d966748cdbd24240964a94b63 |
| institution | Kabale University |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-06-01 |
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| series | Foods |
| spelling | doaj-art-2cafba4d966748cdbd24240964a94b632025-08-20T03:27:07ZengMDPI AGFoods2304-81582025-06-011412203910.3390/foods14122039Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato AccessionsHaroon Rasheed0Yining Ying1Daraz Ahmad2Bowen Deng3Jinsong Bao4Institute of Nuclear Agricultural Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, ChinaInstitute of Nuclear Agricultural Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, ChinaInstitute of Nuclear Agricultural Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, ChinaInstitute of Nuclear Agricultural Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, ChinaInstitute of Nuclear Agricultural Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, ChinaThe genotypic diversity and genome-wide association study (GWAS) of potato proteins and amino acid content were investigated in two environments: 98 potato accessions in Environment I and 93 in Environment II. Results revealed that aspartic acid was the most abundant amino acid in environment I and glutamic acid in environment II. The limiting amino acids were cysteine in both environments. The environmental variance accounted for more than 40% of the total variance for all traits except for serine and gamma amino butyric acid (GABA), indicating that potato protein and most amino acids were affected by growing seasons. GWAS identified 78 significant loci associated with potato protein and amino acid contents. The pleiotropic loci, especially those located on chromosomes 6, 9, and 11, provide a strong genetic basis for quality improvement. This study provides genetic insights into potato proteins and amino acid diversity, thereby enhancing molecular breeding for nutritional qualities.https://www.mdpi.com/2304-8158/14/12/2039potatogenotypic diversityamino acidnutritional qualityenvironment |
| spellingShingle | Haroon Rasheed Yining Ying Daraz Ahmad Bowen Deng Jinsong Bao Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions Foods potato genotypic diversity amino acid nutritional quality environment |
| title | Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions |
| title_full | Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions |
| title_fullStr | Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions |
| title_full_unstemmed | Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions |
| title_short | Genotypic Diversity and Genome-Wide Association Study of Protein Content and Amino Acid Profile in Diverse Potato Accessions |
| title_sort | genotypic diversity and genome wide association study of protein content and amino acid profile in diverse potato accessions |
| topic | potato genotypic diversity amino acid nutritional quality environment |
| url | https://www.mdpi.com/2304-8158/14/12/2039 |
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