Guide chart for color combinations in hybrid eggplants

Sambandam, C. N.

doi:10.1007/bf02863155

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…Halsted(1918) was the rst to attempt an analysis of the inheritance of eggplant fruit color. Subsequently, some studies on the skin color of Solanaceae crops reported similar genetic patterns, with green being dominant over white (Sambandam 1967;Liu et al 2020). Likewise, in our study, the phenotype statistics were found to be consistent with a Mendelian single gene segregation ratio, indicating that a single dominant gene controls green color of eggplant peel.…”

Section: Discussionsupporting

confidence: 86%

“…Likewise, in our study, the phenotype statistics were found to be consistent with a Mendelian single gene segregation ratio, indicating that a single dominant gene controls green color of eggplant peel. Although inheritance models have been extensively proposed for eggplant fruit color, little is known about the underlying genetic mechanism, and no studies have yet discovered candidate genes controlling this trait (Sambandam 1967). Therefore, identifying the candidate gene that regulates the color of eggplant pericarp is valuable to study the regulatory mechanisms of eggplant peel color formation further.…”

Section: Discussionmentioning

confidence: 99%

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Fine mapping and identification of SmAPRR2 regulating rind color in eggplant (Solanum melongena L.)

Fang

Wang

Peng

et al. 2022

Preprint

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Rind color is an economically important agronomic trait in eggplant that impacts consumer preferences. However, the gene(s) regulating eggplant rind color have not been characterized. In this study, bulked segregant analysis (BSA) and kompetitive allele-specific PCR (KASP) were employed to identify a candidate gene for eggplant rind color through constructing an F2 population generated from a cross between 'BL01' (green pericarp) and 'B1' (white pericarp). Genetic analysis of rind color revealed that a single dominant gene controls green color of eggplant peel. Pigment content measurement and cytological observations demonstrated that chlorophyll and carotenoid content and the number of chloroplasts and thylakoids in BL01 were higher than in B1. Using a BSA-seq method and a recombinant mapping strategy in F2 plants, a candidate gene (EGP19168.1) was fine-mapped to a 20.36 Kb interval on chromosome 8. The gene is predicted to encode the two-component response regulator-like protein Arabidopsis pseudo-response regulator2 (APRR2). Subsequently, allelic sequence analysis revealed that a single-base deletion in white-skinned eggplant led to a premature termination codon. A credible molecular marker closely linked to the candidate gene was developed to genotype 45 diverse eggplant germplasms, which could predict the trait of rind color (green and white) with a 91.1% accuracy rate. This study will be valuable for molecular marker-assisted selection in eggplant breeding and provides theoretical foundation for analyzing the formation mechanism of eggplant peel color.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Fine mapping and identification of SmAPRR2 regulating rind color in eggplant (Solanum melongena L.)

Fang

Wang

Peng

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Halsted [ 30 ] was the first to attempt an analysis of the inheritance of eggplant fruit color. Subsequently, some studies on the skin color of Solanaceae crops reported similar genetic patterns, with green being dominant over white [ 31 , 32 ]. Likewise, in our study, the phenotype statistics were found to be consistent with a Mendelian single-gene segregation ratio, indicating that a single dominant gene controls the green color of eggplant peel.…”

Section: Discussionmentioning

confidence: 99%

“…Likewise, in our study, the phenotype statistics were found to be consistent with a Mendelian single-gene segregation ratio, indicating that a single dominant gene controls the green color of eggplant peel. Although inheritance models have been extensively proposed for eggplant fruit color, little is known about the underlying genetic mechanism of green and white rind color [ 31 ]. Therefore, identifying the candidate gene that regulates the green/white color of eggplant pericarp is valuable to further study the regulatory mechanisms of abundant peel color in eggplant.…”

Section: Discussionmentioning

confidence: 99%

Fine Mapping and Identification of SmAPRR2 Regulating Rind Color in Eggplant (Solanum melongena L.)

Fang

Wang

et al. 2023

IJMS

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Rind color is an economically important agronomic trait in eggplant that impacts consumer preferences. In this study, bulked segregant analysis and competitive allele-specific PCR were employed to identify the candidate gene for eggplant rind color through constructing a 2794 F2 population generated from a cross between “BL01” (green pericarp) and “B1” (white pericarp). Genetic analysis of rind color revealed that a single dominant gene controls green color of eggplant peel. Pigment content measurement and cytological observations demonstrated that chlorophyll content and chloroplast number in BL01 were higher than in B1. A candidate gene (EGP19168.1) was fine-mapped to a 20.36 Kb interval on chromosome 8, which was predicted to encode the two-component response regulator-like protein Arabidopsis pseudo-response regulator2 (APRR2). Subsequently, allelic sequence analysis revealed that a SNP deletion (ACT→AT) in white-skinned eggplant led to a premature termination codon. Genotypic validation of 113 breeding lines using the Indel marker closely linked to SmAPRR2 could predict the skin color (green/white) trait with an accuracy of 92.9%. This study will be valuable for molecular marker-assisted selection in eggplant breeding and provides theoretical foundation for analyzing the formation mechanism of eggplant peel color.

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