Revealing Genetic Variations Associated with Chip-Processing Properties in Potato (Solanum tuberosum L.)

Jo, Kwang Ryong; Choi, Jang-Gyu; Kwon, Do-Hee; Park, Young-Eun; Kim, Su-Jeong

doi:10.3390/agronomy13030642

Cited by 4 publications

(1 citation statement)

References 59 publications

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“…In our study, the genes within 100 kbp window size were identified according to the positions of the closest flanking significant SNPs. Several independent studies have used genomic space within ± 100 kb of each peak SNP proximity to identify candidate genes associated with varied traits using association mapping in potato 87 , 88 . Expanding the search interval to 100 kbp increases the likelihood of capturing genetic variants in LD with the causal variant, improving the chances of identifying relevant candidate genes.…”

Section: Discussionmentioning

confidence: 99%

Genetic architecture of tuber-bound free amino acids in potato and effect of growing environment on the amino acid content

Pandey,

Thompson,

Joshi

et al. 2023

Sci Rep

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Free amino acids in potato tubers contribute to their nutritional value and processing quality. Exploring the natural variation in their accumulation in tubers across diverse genetic backgrounds is critical to potato breeding programs aiming to enhance or partition their distribution effectively. This study assessed variation in the tuber-bound free amino acids in a diversity panel of tetraploid potato clones developed and maintained by the Texas A&M Potato Breeding Program to explore their genetic basis and to obtain genomic-estimated breeding values for applied breeding purposes. Free amino acids content was evaluated in tubers of 217 tetraploid potato clones collected from Dalhart, Texas in 2019 and 2020, and Springlake, Texas in 2020. Most tuber amino acids were not affected by growing location, except histidine and proline, which were significantly lower (− 59.0%) and higher (+ 129.0%), respectively, at Springlake, Texas (a location that regularly suffers from abiotic stresses, mainly high-temperature stress). Single nucleotide polymorphism markers were used for genome-wide association studies and genomic selection of clones based on amino acid content. Most amino acids showed significant variations among potato clones and moderate to high heritabilities. Principal component analysis separated fresh from processing potato market classes based on amino acids distribution patterns. Genome-wide association studies discovered 33 QTL associated with 13 free amino acids. Genomic-estimated breeding values were calculated and are recommended for practical potato breeding applications to select parents and advance clones with the desired free amino acid content.

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Section: Discussionmentioning

confidence: 99%

Genetic architecture of tuber-bound free amino acids in potato and effect of growing environment on the amino acid content

Pandey,

Thompson,

Joshi

et al. 2023

Sci Rep

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Genomic prediction for potato (Solanum tuberosum) quality traits improved through image analysis

Yusuf,

Miller,

Stefaniak

et al. 2024

The Plant Genome

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Potato (Solanum tuberosum L.) is the most widely grown vegetable in the world. Consumers and processors evaluate potatoes based on quality traits such as shape and skin color, making these traits important targets for breeders. Achieving and evaluating genetic gain is facilitated by precise and accurate trait measures. Historically, quality traits have been measured using visual rating scales, which are subject to human error and necessarily lump individuals with distinct characteristics into categories. Image analysis offers a method of generating quantitative measures of quality traits. In this study, we use TubAR, an image‐analysis R package, to generate quantitative measures of shape and skin color traits for use in genomic prediction. We developed and compared different genomic models based on additive and additive plus non‐additive relationship matrices for two aspects of skin color, redness, and lightness, and two aspects of shape, roundness, and length‐to‐width ratio for fresh market red and yellow potatoes grown in Minnesota between 2020 and 2022. Similarly, we used the much larger chipping potato population grown during the same time to develop a multi‐trait selection index including roundness, specific gravity, and yield. Traits ranged in heritability with shape traits falling between 0.23 and 0.85, and color traits falling between 0.34 and 0.91. Genetic effects were primarily additive with color traits showing the strongest effect (0.47), while shape traits varied based on market class. Modeling non‐additive effects did not significantly improve prediction models for quality traits. The combination of image analysis and genomic prediction presents a promising avenue for improving potato quality traits.

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Identification of heat stress-related genomic regions by genome-wide association study in Solanum tuberosum

Kaier,

Beck,

Ingold

et al. 2024

Genomics

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Revealing Genetic Variations Associated with Chip-Processing Properties in Potato (Solanum tuberosum L.)

Cited by 4 publications

References 59 publications

Genetic architecture of tuber-bound free amino acids in potato and effect of growing environment on the amino acid content

Genetic architecture of tuber-bound free amino acids in potato and effect of growing environment on the amino acid content

Genomic prediction for potato (Solanum tuberosum) quality traits improved through image analysis

Identification of heat stress-related genomic regions by genome-wide association study in Solanum tuberosum

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