Avena Hackeliisp. nov

معرفی دو گونه جدید Williamsonia iranica sp. nov . و sp. nov. Ginkgoites persica

    عضو قدیر از بالایی ترین بخش سازند نایبند به سن رتین (تریاس بالایی) دارای برونزدگی بسیار خوبی در منطقه معادن پروده، جنوب غرب شهر طبس می باشد. دو نمونه جدید از ماکروفسیل‌های گیاهی این سازند متعلق به بازدانگان برای اولین بار از عضو قدیر سازند نایبند مورد شناسایی قرارگرفت که در این مقاله معرفی می‌شوند. این گونه‌ها عبارتند از: Williamsonia iranica sp. nov. متعلق به راسته بنتیتال‌ها (Order Bennet...

Evolution of multilocus genetic structure in Avena hirtula and Avena barbata.

Avena barbata, an autotetraploid grass, is much more widely adapted than Avena hirtula, its diploid ancestor. We have determined the 14-locus genotype of 754 diploid and 4751 tetraploid plants from 10 and 50 Spanish sites, respectively. Allelic diversity is much greater in the tetraploid (52 alleles) than in the diploid (38 alleles): the extra alleles of the tetraploid were present in nonsegreg...

Assessment Report on Avena Sativa L., Herba and Avena Sativa L., Fructus

Comparative cytogenetic analysis of Avena macrostachya and diploid C-genome Avena species.

The chromosome set of Avena macrostachya Balansa ex Coss. et Durieu was analyzed using C-banding and fluorescence in situ hybridization with 5S and 18S-5.8S-26S rRNA gene probes, and the results were compared with the C-genome diploid Avena L. species. The location of major nucleolar organizer regions and 5S rDNA sites on different chromosomes confirmed the affiliation of A. macrostachya with t...

Chloroplast genome evolution in the genus Avena.

The genus Avena contains five different chloroplast genomes, I-V. A physical map of chloroplast (ct) DNA of Avena sativa (type I chloroplast genome) was constructed using three restriction endonucleases, PstI, SalI and SmaI. This genome is ca. 135.5 kbp in size, and contains two inverted repeats of ca. 22.5 kbp each, separated by a large (ca. 79.0 kbp) and small (ca. 12.5 kbp) single copy regio...