Fluctuation of ecological niches and geographic range shifts along chile pepper's domestication gradient.

Autor: Martínez-Ainsworth NE; Centro de Investigaciones Interdisciplinarias en Ciencias y Humanidades Universidad Nacional Autónoma de México Ciudad de México Mexico., Scheppler H; Department of Horticulture and Crop Science Ohio State University Columbus Ohio USA., Moreno-Letelier A; Jardín Botánico del Instituto de Biología Universidad Nacional Autónoma de México, Ciudad Universitaria Ciudad de México Mexico., Bernau V; Plant Introduction Research Unit, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), and Department of Agronomy Iowa State University Ames Iowa USA., Kantar MB; Department of Tropical Plant and Soil Sciences University of Hawai'i Honolulu Hawaii USA., Mercer KL; Department of Horticulture and Crop Science Ohio State University Columbus Ohio USA., Jardón-Barbolla L; Centro de Investigaciones Interdisciplinarias en Ciencias y Humanidades Universidad Nacional Autónoma de México Ciudad de México Mexico.; Department of Horticulture and Crop Science Ohio State University Columbus Ohio USA.
Jazyk: angličtina
Zdroj: Ecology and evolution [Ecol Evol] 2023 Nov 28; Vol. 13 (11), pp. e10731. Date of Electronic Publication: 2023 Nov 28 (Print Publication: 2023).
DOI: 10.1002/ece3.10731
Abstrakt: Domestication is an ongoing well-described process. However, while many have studied the changes domestication causes in plant genetics, few have explored its impact on the portion of the geographic landscape in which the plants exist. Therefore, the goal of this study was to understand how the process of domestication changed the geographic space suitable for chile pepper ( Capsicum annuum ) in its center of origin (domestication). C. annuum is a major crop species globally whose center of domestication, Mexico, has been well-studied. It provides a unique opportunity to explore the degree to which ranges of different domestication classes diverged and how these ranges might be altered by climate change. To this end, we created ecological niche models for four domestication classes (wild, semiwild, landrace, modern cultivar) based on present climate and future climate scenarios for 2050, 2070, and 2090. Considering present environment, we found substantial overlap in the geographic niches of all the domestication classes. Yet, environmental and geographic aspects of the current ranges did vary among classes. Wild and commercial varieties could grow in desert conditions, while landraces could not. With projections into the future, habitat was lost asymmetrically, with wild, semiwild, and landraces at greater risk of territorial declines than modern cultivars. Further, we identified areas where future suitability overlap between landraces and wilds is expected to be lost. While range expansion is widely associated with domestication, we found little support of a constant niche expansion (either in environmental or geographical space) throughout the domestication gradient in chile peppers in Mexico. Instead, particular domestication transitions resulted in loss, followed by capturing or recapturing environmental or geographic space. The differences in environmental characterization among domestication gradient classes and their future potential range shifts increase the need for conservation efforts to preserve landraces and semiwild genotypes.
Competing Interests: Authors declare that they have no conflict of interest, including commercial or intellectual property interest in wild, local, or any germplasm.
(© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: