ArticlePlant biotechnology journal2020
Whole-genome resequencing-based QTL-seq identified AhTc1 gene encoding a R2R3-MYB transcription factor controlling peanut purple testa colour.
Article in Plant biotechnology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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Who cites it
51 citing papers in PubMed.
- Telomere-to-telomere genome assemblies and population resequencing of diploid and allotetraploid peanut varieties.Nature genetics · 2026Article
- Two bHLH Transcription Factor GenesPlants (Basel, Switzerland) · 2026Article
- A major qualitative trait locus increases antioxidant activity in testaless peanut seeds.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Identification of AhFPA1 as the causal gene underlying qEFT13.1, a key QTL for early flowering in peanut.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Two WD40 proteins, AhWD40-170 and AhWD40-171, referred to regulation of anthocyanin accumulation in peanut (Arachis hypogaea L.).BMC plant biology · 2025Article
- Genetic analysis of seed germination rates inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2025Article
- Candidate gene identification and marker development for seed coat peeling rate in peanut (Arachis Hypogaea L.).BMC plant biology · 2025Article
- Mutations of two AhTT8 genes reduce the accumulation of anthocyanins and confer the white testa of peanut (Arachis hypogaea L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genome-wide association analysis in peanut accessions uncovers the genetic basis regulating oil and fatty acid variation.BMC plant biology · 2025Article
- Genetic analysis and fine mapping reveal that AhRt3, which encodes an anthocyanin reductase, is responsible for red testa in cultivated peanuts.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Article
- Fine mapping and identification of the geneFrontiers in plant science · 2025Article
- Physiological and transcriptomic analyses of exogenous calcium in boosting nitrogen use efficiency via oxidative and resistance pathways in peanuts.Frontiers in plant science · 2025Article
- Identification of a Major QTL for Seed Protein Content in Cultivated Peanut (Plants (Basel, Switzerland) · 2024Article
- Identification and application of a candidate gene AhAftr1 for aflatoxin production resistance in peanut seed (Arachis hypogaea L.).Journal of advanced research · 2024Article
- A genomic variation map provides insights into peanut diversity in China and associations with 28 agronomic traits.Nature genetics · 2024Article
- Nitrogen application in pod zone improves yield and quality of two peanut cultivars by modulating nitrogen accumulation and metabolism.BMC plant biology · 2024Article
- Identification of a major QTL underlying sugar content in peanut kernels based on the RIL mapping population.Frontiers in plant science · 2024Article
- Physiological and biochemical mechanisms underlying the role of anthocyanin in acquired tolerance to salt stress in peanut (Frontiers in plant science · 2024Article
- Omics-driven advances in the understanding of regulatory landscape of peanut seed development.Frontiers in plant science · 2024Review
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Authors and funding
16 authors.
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Abstract
Peanut (Arachis hypogaea. L) is an important oil crop worldwide. The common testa colours of peanut varieties are pink or red. But the peanut varieties with dark purple testa have been focused in recent years due to the potential high levels of anthocyanin, an added nutritional value of antioxidant. However, the genetic mechanism regulating testa colour of peanut is unknown. In this study, we found that the purple testa was decided by the female parent and controlled by a single major gene named AhTc1. To identify the candidate gene controlling peanut purple testa, whole-genome resequencing-based approach (QTL-seq) was applied, and a total of 260.9 Gb of data were generated from the parental and bulked lines. SNP index analysis indicated that AhTc1 located in a 4.7 Mb region in chromosome A10, which was confirmed by bulked segregant RNA sequencing (BSR) analysis in three segregation populations derived from the crosses between pink and purple testa varieties. Allele-specific markers were developed and demonstrated that the marker pTesta1089 was closely linked with purple testa. Further, AhTc1 encoding a R2R3-MYB gene was positional cloned. The expression of AhTc1 was significantly up-regulated in the purple testa parent YH29. Overexpression of AhTc1 in transgenic tobacco plants led to purple colour of leaves, flowers, pods and seeds. In conclusion, AhTc1, encoding a R2R3-MYB transcription factor and conferring peanut purple testa, was identified, which will be useful for peanut molecular breeding selection for cultivars with purple testa colour for potential increased nutritional value to consumers.
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