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Article

Correlating genetic variation in carbon isotopic composition with complex climatic gradients.

Proceedings of the National Academy of Sciences of the United States of America - 15 Aug 1992

Comstock J P, Ehleringer J R

Abstract excerpt

Genetic variation in both carbon isotope discrimination and the proportions of leaf and photosynthetic twig tissues were observed in ecotypes of Hymenoclea salsola T.G., a common shrub in the deserts of the western United States, when grown under common garden conditions. These variations were correlated with climatic conditions in the habitats of origin through a model that described the leaf-to-air water vapor...

Topics

Carbon
Carbon Isotopes
Desert Climate
Ecology
Genetic Variation
Humidity
Photosynthesis
Plant Physiological Phenomena
Plants
United States
Water

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Identifiers

PMID: 1502194
DOI: 10.1073/pnas.89.16.7747
PMCID: PMC49788

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-1502194-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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