Abstract
A study was designed to sample and characterize 12 populations of wild emmer wheat in Jordan at the high-molecular-weight (HMW) glutenin and allozyme levels. Data were collected and individual plants were sampled from 207 permanent sampling points in three central, three peripheral, and six marginal populations during all or part of a five-year study period. Patterns of variation, based on four HMW-glutenin and 36 allozyme loci, were used in characterizing these populations. Polymorphisms, based on HMW-glutenins and allozymes, decreased with increasing aridity of the collection site. A large portion of the HMW-glutenin(61.1%) and allozyme (62.7%) variant alleles were localized. Gene differentiation estimates, based on HMW-glutenins and allozymes among (60.8 and 65.8%, respectively) and within (39.2 and 34.2%, respectively) populations, were high and comparatively similar; however less variation was partitioned among the Jordanian populations when compared to populations in the more mesic parts of the Fert...
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