The domestication of Cucurbita argyrosperma as revealed by the genome of its wild relative
| Autor: | Gabriela Castellanos-Morales, Erika Aguirre-Planter, Yocelyn T. Gutiérrez-Guerrero, Rafael Lira-Saade, Guillermo Sánchez-de la Vega, Josué Barrera-Redondo, Luis E. Eguiarte, Jonás A. Aguirre-Liguori, Xitlali Aguirre-Dugua, Maud I. Tenaillon |
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| Přispěvatelé: | Instituto de Ecologia, Universidad Nacional Autónoma de México (UNAM), Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) (GQE-Le Moulon), AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Cucurbita argyrosperma Plant domestication Population genetics Introgression Plant Science Horticulture Subspecies 01 natural sciences Biochemistry Article Gene flow 03 medical and health sciences Genetics Cucurbita Domestication 1234567890() 2. Zero hunger [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] biology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] food and beverages Genomics biology.organism_classification [SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] humanities 030104 developmental biology Evolutionary biology Cucurbita moschata Gourd 010606 plant biology & botany Biotechnology |
| Zdroj: | Horticulture research Horticulture research, Nature Publishing Group, 2021, 8 (1), ⟨10.1038/s41438-021-00544-9⟩ Horticulture Research |
| ISSN: | 2052-7276 |
| Popis: | Despite their economic importance and well-characterized domestication syndrome, the genomic impact of domestication and the identification of variants underlying the domestication traits in Cucurbita species (pumpkins and squashes) is currently lacking. Cucurbita argyrosperma, also known as cushaw pumpkin or silver-seed gourd, is a Mexican crop consumed primarily for its seeds rather than fruit flesh. This makes it a good model to study Cucurbita domestication, as seeds were an essential component of early Mesoamerican diet and likely the first targets of human-guided selection in pumpkins and squashes. We obtained population-level data using tunable Genotype by Sequencing libraries for 192 individuals of the wild and domesticated subspecies of C. argyrosperma across Mexico. We also assembled the first high-quality wild Cucurbita genome. Comparative genomic analyses revealed several structural variants and presence/absence of genes related to domestication. Our results indicate a monophyletic origin of this domesticated crop in the lowlands of Jalisco. We found evidence of gene flow between the domesticated and wild subspecies, which likely alleviated the effects of the domestication bottleneck. We uncovered candidate domestication genes that are involved in the regulation of growth hormones, plant defense mechanisms, seed development, and germination. The presence of shared selected alleles with the closely related species Cucurbita moschata suggests domestication-related introgression between both taxa. |
| Databáze: | OpenAIRE |
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