Abstract
The starchy storage roots of cassava are commonly processed into a variety of products, including cassava granulated processed products (gari). The commercial value of cassava roots depends on the yield and quality of processed products, directly influencing the acceptance of new varieties by farmers, processors, and consumers. This study aims to estimate genetic advance through phenotypic selection and identify genomic regions associated and candidate genes linked with gari yield and quality. Higher single nucleotide polymorphism (SNP)-based heritability estimates compared to broad-sense heritability estimates were observed for most traits highlighting the influence of genetic factors on observed variation. Using genome-wide association analysis of 188 clones, genotyped using 53,150 genome-wide SNPs, nine SNPs located on seven chromosomes were significantly associated with peel loss, gari yield, color parameters for gari and eba, bulk density, swelling index, and textural properties of eba. Future research will focus on validating and understanding the functions of identified genes and their influence on gari yield and quality traits.
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Claims 4
Claim · model-written summary
SNP-based heritability estimates were higher than broad-sense heritability estimates for most cassava traits.
- Taxon
- cassava
Manihot esculentat0 - Outcome
- heritability estimatese1
- Direction
- Highere1
- Comparator
- broad-sense heritability estimatese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Higher single nucleotide polymorphism (SNP)-based heritability estimates compared to broad-sense heritability estimates were observed for most traits”
t0“granulated cassava processed product”
Claim · model-written summary
Nine SNPs on seven chromosomes were significantly associated with peel loss and gari yield in cassava.
- Taxon
- cassavaManihot esculentat0
- Gene
- nine SNPse2
- Outcome
- peel loss, gari yielde2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“nine SNPs located on seven chromosomes were significantly associated with peel loss, gari yield, color parameters for gari and eba, bulk density, swelling index, and textural properties of eba”
t0“granulated cassava processed product”
Claim · model-written summary
Nine SNPs on seven chromosomes were significantly associated with gari and eba color parameters and bulk density in cassava.
- Taxon
- cassavaManihot esculentat0
- Gene
- nine SNPse2
- Outcome
- color parameters for gari and eba, bulk densitye2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“nine SNPs located on seven chromosomes were significantly associated with peel loss, gari yield, color parameters for gari and eba, bulk density, swelling index, and textural properties of eba”
t0“granulated cassava processed product”
Claim · model-written summary
Nine SNPs on seven chromosomes were significantly associated with swelling index and textural properties of eba in cassava.
- Taxon
- cassavaManihot esculentat0
- Gene
- nine SNPse2
- Outcome
- swelling index, and textural properties of ebae2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“nine SNPs located on seven chromosomes were significantly associated with peel loss, gari yield, color parameters for gari and eba, bulk density, swelling index, and textural properties of eba”
t0“granulated cassava processed product”