Metabolic enzyme activities across an altitudinal gradient: an examination of pikas (genus Ochotona)
نویسندگان
چکیده
منابع مشابه
Metabolic enzyme activities across an altitudinal gradient: an examination of pikas (genus Ochotona).
Changes in metabolic enzyme activities were examined in three species of pikas that occur over a range of altitudes. Because these closely related mammals live in comparable ecosystems and face similar environmental factors regardless of altitude, modifications of metabolic machinery are probably due to differences in oxygen availability. Citrate synthase (CS), beta-hydroxyacyl CoA dehydrogenas...
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Asymmetrical local adaptation of maize landraces along an altitudinal gradient
Crop landraces are managed populations that evolve in response to gene flow and selection. Cross-pollination among fields, seed sharing by farmers, and selection by management and environmental conditions play roles in shaping crop characteristics. We used common gardens to explore the local adaptation of maize (Zea mays ssp. mays) landrace populations from Chiapas, Mexico to altitude. We sowed...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2003
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.00226