Chiles en México: Historias, culturas y ambientes

Dávila, M.A. Vásquez; Meléndez, A.A.; Katz, Esther; Medina, G.I. Manzanero

doi:10.25009/uv.2725.1626

Cited by 3 publications

(1 citation statement)

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“…The wild‐resembling Garbanzo found in forests might be a valuable gene flow bridge between wild and cultivated germplasm (Castañón‐Nájera et al., 2008). The historical and cultural value of some of these landraces is linked with native peoples, such as Oaxaca's Taviche which is endemic to the Mixtepec region and Tusta's association with the Zapotec and Chatino peoples from the Loixcha region (Sánchez‐Cortés, 2021; Santiago‐Luna et al., 2015). This highlights the importance of in situ conservation strategies within relevant historical cultural context.…”

Section: Discussionmentioning

confidence: 99%

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

Martínez‐Ainsworth,

Scheppler,

Moreno‐Letelier

et al. 2023

Ecology and Evolution

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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.

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Section: Discussionmentioning

confidence: 99%