Karyological study of Bufotes variabilis populations from East and Northeast of Khuzestan province of Iran
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 286
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شناسه ملی سند علمی:
BIOCONF20_145
تاریخ نمایه سازی: 28 اردیبهشت 1398
چکیده مقاله:
Variable toad (Bufotes variabilis) is an anuran from Bufonidae family. This species is a member of the green toad complex (Bufotes viridis complex) that comprises diploid (2n), triploid (3n) and tetraploid (4n) bisexually reproducing taxa in Palearctic. Although this species broadly spreads in the western part of Iran, karyological studies are only restricted to the populations of few provinces. Systematic and biodiversity of different populations of this species in Iran and especially in Khuzestan province is still unknown. In this study, sampling was done from June 2016 to September 2017. Toads were collected from various stations in Behbahan, Masjed Soleyman, and Dehdez. Karyotype studies demonstrate that all samples are diploid and have 2n=22. These chromosomes are classified into two groups. The first group consists of 6 pairs of large chromosomes and the second group contains 5 pairs of small chromosomes. In all samples, 8 pairs of chromosomes are metacentric and 3 pairs of chromosomes are submetacentric. So that, in all toads of three mentioned areas 4th, 6th and 7th pairs are submetacentric and other chromosomes are metacentric
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نویسندگان
Forough Seydi,
Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Fatemeh Fakharzadeh
Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran