Variation in allozymes and stomatal size in pinyon (Pinus edulis, Pinaceae), associated with soil moisture
نویسندگان
چکیده
منابع مشابه
Variation in allozymes and stomatal size in pinyon (Pinus edulis, Pinaceae), associated with soil moisture.
Microgeographic allozyme variation was examined in pinyon pine, Pinus edulis, among five collection sites in Owl Canyon, Colorado. Relatively dry and moist sites were identified by associated plant communities and the sizes and densities of trees. Three moist sites and two dry sites were compared, and because all sites were within 600 m of one another, isolation by distance was not considered a...
متن کاملGenetic variation in piñon pine, Pinus edulis, associated with summer precipitation.
Three previous reports of microgeographical variation of glycerate dehydrogenase (Gly) frequencies in piñon, Pinus edulis, established the hypothesis that Gly frequencies contribute to adaptation to heterogeneous environments, specifically to variation in soil moisture. In each of these studies, the frequency of the Gly-3 allele or of Gly-33 homozygotes was higher on dry sites than on nearby mo...
متن کاملMicrosatellite primers in the foundation tree species Pinus edulis and P. monophylla (Pinaceae)1
UNLABELLED PREMISE OF THE STUDY Microsatellite primers were developed in the foundational tree species Pinus edulis to investigate population differentiation of P. edulis and hybridization among closely related species. • METHODS AND RESULTS Using a hybridization protocol, primer sets for 11 microsatellite loci were developed using megagametophyte tissue from P. edulis and scored for polym...
متن کامل: metadiscourse in introduction sections of applied linguistics and physics research articles: exploring variation in frequency and type
abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...
15 صفحه اولSpatial pattern of allozyme variation in a contact zone of Pinus Ponderosa and P. arizonica (Pinaceae).
The spatial distribution of genotypes for nine polymorphic allozyme loci was examined in a contact zone between Pinus ponderosa var. scopulorum and another tree regarded as either a separate species, Pinus arizonica, or variety, Pinus ponderosa var. arizonica, in southern Arizona. Previous work had identified a steep elevational cline for a key taxonomic trait, number of leaf-needles per fascic...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1998
ISSN: 0002-9122
DOI: 10.2307/2446636