نتایج جستجو برای: karyology
تعداد نتایج: 131 فیلتر نتایج به سال:
The genus Ctenomys Blainville 1826 is one of the most diverse of South American hystricognath rodents. Currently, nine species of tuco-tucos are reported from Bolivia, four at elevations above 2,000 m and five inhabiting the lowlands (< 1,000 m). In the present paper, morphology, karyology, and phylogenetic analyses of DNA sequences for a mitochondrial locus were used to assess the taxonomic st...
This paper reports the first karyological study of trematode Ichthyocotylurus platycephalus (Creplin, 1825) Odening 1969. Chromosome number and morphology were studied in somatic cells of parthenites from intermediate host--mollusc Valvata piscinalis using an air drying technique and Giemsa staining. The karyotype consisted of 20 chromosomes comprising five pairs of subtelo-acrocentric (1st to ...
The genus Vicia L. is an important forage crop and consists of approximately 160 annual perennial species. This has variety in phenotypic characters. In this study, six genotypes taxon was choosen to determine the chromosome numbers, ploidy levels compare karyotypic trairts. Based on results, basic number varied from x=5, x=6 x=7. According Stebbins classification, species were classified as sy...
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