Climatic Adaptation and Ecological Descriptors of 42 Mexican Maize Races

Corral, José Ariel Ruíz; Puga, Noé Durán; González, José de Jesús Sánchez; Parra, José Ron; Eguiarte, Diego Raymundo González; Holland, James B.; García, Guillermo Medina

doi:10.2135/cropsci2007.09.0518

Cited by 101 publications

(120 citation statements)

References 21 publications

(35 reference statements)

Supporting

Mentioning

109

Contrasting

Unclassified

Order By: Relevance

“…Similar results have been reported in P. lunatus from Costa Rica (Degreef, Rocha, Vanderborght, & Baudoin, 2002; Vargas, Castro, Macaya, & Rocha, 2003; Zoro Bi, Maquet, & Baudoin, 2003) and Mexico (Andueza‐Noh et al., 2016; Martínez‐Castillo, Zizumbo‐Villarreal, Perales‐Rivera, & Colunga‐GarcíaMarín, 2004) as well as in other species, such as Zea mays (Ruiz‐Corral et al., 2008), Sorghum bicolor (Iqbal et al., 2010; Nkongolo & Nsapato, 2003), Theobroma cacao (Suárez‐Venero et al., 2015), and Crataegus spp. (Núñez‐Colín et al., 2008).…”

Section: Discussionmentioning

confidence: 99%

Climatic adaptation and ecological descriptors of wild beans from Mexico

Cerda-Hurtado

Máyek-Pérez

Muruaga‐Martínez

et al. 2018

Ecology and Evolution

View full text Add to dashboard Cite

Despite its economic, social, biological, and cultural importance, wild forms of the genus Phaseolus are not well represented in germplasm banks, and they are at great risk due to changes in land use as well as climate change. To improve our understanding of the potential geographical distribution of wild beans (Phaseolus spp.) from Mexico and support in situ and ex situ conservation programs, we determined the climatic adaptation ranges of 29 species and two subspecies of Phaseolus collected throughout Mexico. Based on five biotic and 117 abiotic variables obtained from different databases—WorldClim, Global‐Aridity, and Global‐PET—we performed principal component and cluster analyses. Germplasm was distributed among 12 climatic types from a possible 28. The general climatic ranges were as follows: 8–3,083 m above sea level; 12.07–26.96°C annual mean temperature; 10.33–202.68 mm annual precipitation; 9.33–16.56 W/m2 of net radiation; 11.68–14.23 hr photoperiod; 0.06–1.57 aridity index; and 10–1,728 mm/month of annual potential evapotranspiration. Most descriptive variables (25) clustered species into two groups: One included germplasm from semihot climates, and the other included germplasm from temperate climates. Species clustering showed 45% to 54% coincidence with species previously grouped using molecular data. The species P. filiformis, P. purpusii, and P. maculatus were found at low‐humidity locations; these species could be used to improve our understanding of the extreme aridity adaptation mechanisms used by wild beans to avoid or tolerate climate change as well as to introgress favorable alleles into new cultivars adapted to hot, dry environments.

show abstract

Section: Discussionmentioning

confidence: 99%

Climatic adaptation and ecological descriptors of wild beans from Mexico

Cerda-Hurtado

Máyek-Pérez

Muruaga‐Martínez

et al. 2018

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Maize landraces in Mexico show remarkable diversity and climatic adaptability, growing in environments ranging from arid to humid and from temperate to very hot (18). This diversity raises the possibility that Mexico already has maize germplasm suitable for predicted environments, i.e., that there are current analogs in the country for the ''novel'' crop climates predicted by 2050.…”

Section: Discussionmentioning

confidence: 99%

Assessing the vulnerability of traditional maize seed systems in Mexico to climate change

Bellon

Hodson

Hellin

2011

Proc. Natl. Acad. Sci. U.S.A.

136

111

View full text Add to dashboard Cite

Climate change is predicted to have major impacts on small-scale farmers in Mexico whose livelihoods depend on rain-fed maize. We examined the capacity of traditional maize seed systems to provide these farmers with appropriate genetic material under predicted agro-ecological conditions associated with climate change. We studied the structure and spatial scope of seed systems of 20 communities in four transects across an altitudinal gradient from 10-2,980 m above sea level in five states of eastern Mexico. Results indicate that 90% of all of the seed lots are obtained within 10 km of a community and 87% within an altitudinal range of ±50 m but with variation across four agro-climate environments: wet lowland, dry lowland, wet upper midlatitude, and highlands. Climate models suggest a drying and warming trend for the entire study area during the main maize season, leading to substantial shifts in the spatial distribution patterns of agro-climate environments. For all communities except those in the highlands, predicted future maize environments already are represented within the 10-km radial zones, indicating that in the future farmers will have easy access to adapted planting material. Farmers in the highlands are the most vulnerable and probably will need to acquire seed from outside their traditional geographical ranges. This change in seed sources probably will entail important information costs and the development of new seed and associated social networks, including improved linkages between traditional and formal seed systems and more effective and efficient seed-supply chains. The study has implications for analogous areas elsewhere in Mexico and around the world.adaptation | crop diversity | landraces | genetic resources | food security

show abstract

“…The cultivation of a crop such as maize across a tremendous geographical and ecological range (Kuleshov, 1933;Ruiz Corral et al, 2008) reflects the broad adaptability of some crop species. However, concomitant with the domestication of crops and the subsequent breeding to create elite modern cultivars is a reduction in genetic diversity (Tanksley, 1997;Wright et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Hallauer’s Tusón: a decade of selection for tropical-to-temperate phenological adaptation in maize

et al. 2014

View full text Add to dashboard Cite

Crop species exhibit an astounding capacity for environmental adaptation, but genetic bottlenecks resulting from intense selection for adaptation and productivity can lead to a genetically vulnerable crop. Improving the genetic resiliency of temperate maize depends upon the use of tropical germplasm, which harbors a rich source of natural allelic diversity. Here, the adaptation process was studied in a tropical maize population subjected to 10 recurrent generations of directional selection for early flowering in a single temperate environment in Iowa, USA. We evaluated the response to this selection across a geographical range spanning from 43.05°(WI) to 18.00°(PR) latitude. The capacity for an all-tropical maize population to become adapted to a temperate environment was revealed in a marked fashion: on average, families from generation 10 flowered 20 days earlier than families in generation 0, with a nine-day separation between the latest generation 10 family and the earliest generation 0 family. Results suggest that adaptation was primarily due to selection on genetic main effects tailored to temperature-dependent plasticity in flowering time. Genotype-by-environment interactions represented a relatively small component of the phenotypic variation in flowering time, but were sufficient to produce a signature of localized adaptation that radiated latitudinally, in partial association with daylength and temperature, from the original location of selection. Furthermore, the original population exhibited a maladaptive syndrome including excessive ear and plant heights along with later flowering; this was reduced in frequency by selection for flowering time.

show abstract

Climatic Adaptation and Ecological Descriptors of 42 Mexican Maize Races

Cited by 101 publications

References 21 publications

Climatic adaptation and ecological descriptors of wild beans from Mexico

Climatic adaptation and ecological descriptors of wild beans from Mexico

Assessing the vulnerability of traditional maize seed systems in Mexico to climate change

Hallauer’s Tusón: a decade of selection for tropical-to-temperate phenological adaptation in maize

Contact Info

Product

Resources

About