کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1352526 980577 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Allozyme differentiation in four species of the Crocus cartwrightianus group and in cultivated saffron (Crocus sativus)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Allozyme differentiation in four species of the Crocus cartwrightianus group and in cultivated saffron (Crocus sativus)
چکیده انگلیسی

The genetic variability and divergence of four species of the genus Crocus L., related to Crocus cartwrightianus group, namely Crocus thomasii Ten., Crocus hadriaticus Herbert, Crocus oreocreticus B.L. Burtt, C. cartwrightianus Herbert, has been studied by means of starch gel isozyme electrophoresis. For each population the following enzymatic loci were analyzed: PGI-1, PGI-2, G6PDH-1, G6PDH-2, IDH-1, IDH-2, 6PGDH-1, 6PGDH-2, SKDH-1, SKDH-2, AK-1 and AK-2. The genetic variability was estimated through the parameters A (mean number of alleles per locus), P (percent of polymorphic loci), Ho (mean observed heterozygosity), and He (mean expected heterozygosity). The genetic differentiation has been assayed by Wrigth's F-statistics, and the genetic divergence by Nei's index. Our data confirmed that the taxa are distinct species, in spite of their similar morphology and karyology. C. thomasii is more genetically similar to C. cartwrightianus and C. oreocreticus than to C. hadriaticus. We hypothesized an autopolyploid origin of saffron, probably from C. cartwrightianus, considering the genotypic classes of Crocus sativus and the other related species of the C. cartwrightianus group studied here.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 35, Issue 12, December 2007, Pages 859–868
نویسندگان
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