Identification of candidate genes controlling red seed coat color in cowpea (<i>Vigna unguiculata</i>[L.] Walp)
Abstract Seed coat color is an important consumer-related train in cowpea (Vigna unguiculata[L.] Walp.) and has been a subject of study for over a century. Utilizing newly available resources, including mapping populations, a high-density genotyping platform, and several genome assemblies, red seed coat color has been mapped to two loci,Red-1(R-1) andRed-2(R-2), on Vu03 and Vu07, respectively. A gene model (Vigun03g118700) encoding a dihydroflavonol 4-reductase, a homolog of anthocyanidin reductase 1, which catalyzes the biosynthesis of epicatechin from cyanidin, has been identified as a candidate gene forR-1. Possible causative variants have been also identified forVigun03g118700. A gene model on Vu07 (Vigun07g118500), with predicted nucleolar function and high relative expression in the developing seed, has been identified as a candidate forR-2. The observed red color is believed to be the result of a buildup of cyanidins in the seed coat..
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Preprint| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
bioRxiv.org - (2024) vom: 10. Jan. Zur Gesamtaufnahme - year:2024 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Herniter, Ira A. [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| doi: |
10.1101/2024.01.08.574663 |
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XBI042105943 |
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| 245 | 1 | 0 | |a Identification of candidate genes controlling red seed coat color in cowpea (<i>Vigna unguiculata</i>[L.] Walp) |
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| 520 | |a Abstract Seed coat color is an important consumer-related train in cowpea (Vigna unguiculata[L.] Walp.) and has been a subject of study for over a century. Utilizing newly available resources, including mapping populations, a high-density genotyping platform, and several genome assemblies, red seed coat color has been mapped to two loci,Red-1(R-1) andRed-2(R-2), on Vu03 and Vu07, respectively. A gene model (Vigun03g118700) encoding a dihydroflavonol 4-reductase, a homolog of anthocyanidin reductase 1, which catalyzes the biosynthesis of epicatechin from cyanidin, has been identified as a candidate gene forR-1. Possible causative variants have been also identified forVigun03g118700. A gene model on Vu07 (Vigun07g118500), with predicted nucleolar function and high relative expression in the developing seed, has been identified as a candidate forR-2. The observed red color is believed to be the result of a buildup of cyanidins in the seed coat. | ||
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| 700 | 1 | |a Lo, Sassoum |4 aut | |
| 700 | 1 | |a Guo, Yi-Ning |4 aut | |
| 700 | 1 | |a Lonardi, Stefano |0 (orcid)0000-0002-2696-7274 |4 aut | |
| 700 | 1 | |a Close, Timothy J. |4 aut | |
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