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Article

Transcriptome Analyses Throughout Chili Pepper Fruit Development Reveal Novel Insights into the Domestication Process

1
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Unidad de Genómica Avanzada (Langebio), Irapuato, Guanajuato 36824, Mexico
2
Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Irapuato, Guanajuato 36824, Mexico
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Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Universidad de Sonora, Hermosillo, Sonora 83000, Mexico
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Department of Plant Breeding, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
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Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón-IA2 (CITA-Universidad de Zaragoza), 50059 Zaragoza, Spain
*
Authors to whom correspondence should be addressed.
Academic Editors: Cristina Ferrandiz and Concha (Concepción) Gómez-Mena
Plants 2021, 10(3), 585; https://doi.org/10.3390/plants10030585
Received: 18 February 2021 / Revised: 14 March 2021 / Accepted: 15 March 2021 / Published: 19 March 2021
(This article belongs to the Special Issue Plant Reproductive Development)
Chili pepper (Capsicum spp.) is an important crop, as well as a model for fruit development studies and domestication. Here, we performed a time-course experiment to estimate standardized gene expression profiles with respect to fruit development for six domesticated and four wild chili pepper ancestors. We sampled the transcriptomes every 10 days from flowering to fruit maturity, and found that the mean standardized expression profiles for domesticated and wild accessions significantly differed. The mean standardized expression was higher and peaked earlier for domesticated vs. wild genotypes, particularly for genes involved in the cell cycle that ultimately control fruit size. We postulate that these gene expression changes are driven by selection pressures during domestication and show a robust network of cell cycle genes with a time shift in expression, which explains some of the differences between domesticated and wild phenotypes. View Full-Text
Keywords: capsicum; fruit; gene expression; transcriptome; RNA-Seq; domestication capsicum; fruit; gene expression; transcriptome; RNA-Seq; domestication
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MDPI and ACS Style

Martínez, O.; Arce-Rodríguez, M.L.; Hernández-Godínez, F.; Escoto-Sandoval, C.; Cervantes-Hernández, F.; Hayano-Kanashiro, C.; Ordaz-Ortiz, J.J.; Reyes-Valdés, M.H.; Razo-Mendivil, F.G.; Garcés-Claver, A.; Ochoa-Alejo, N. Transcriptome Analyses Throughout Chili Pepper Fruit Development Reveal Novel Insights into the Domestication Process. Plants 2021, 10, 585. https://doi.org/10.3390/plants10030585

AMA Style

Martínez O, Arce-Rodríguez ML, Hernández-Godínez F, Escoto-Sandoval C, Cervantes-Hernández F, Hayano-Kanashiro C, Ordaz-Ortiz JJ, Reyes-Valdés MH, Razo-Mendivil FG, Garcés-Claver A, Ochoa-Alejo N. Transcriptome Analyses Throughout Chili Pepper Fruit Development Reveal Novel Insights into the Domestication Process. Plants. 2021; 10(3):585. https://doi.org/10.3390/plants10030585

Chicago/Turabian Style

Martínez, Octavio, Magda L. Arce-Rodríguez, Fernando Hernández-Godínez, Christian Escoto-Sandoval, Felipe Cervantes-Hernández, Corina Hayano-Kanashiro, José J. Ordaz-Ortiz, M. Humberto Reyes-Valdés, Fernando G. Razo-Mendivil, Ana Garcés-Claver, and Neftalí Ochoa-Alejo. 2021. "Transcriptome Analyses Throughout Chili Pepper Fruit Development Reveal Novel Insights into the Domestication Process" Plants 10, no. 3: 585. https://doi.org/10.3390/plants10030585

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