7551

7023

كارشناسي ارشد

بوم شناسي آبزيان شيلاتي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1391

يازده،74ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

يزدان كيواني، سالار درافشان

منصوره ملكيان

14/12/91

عيسي ابراهيمي، محمودرضا همامي

مهندسي منابع طبيعي

ID7023

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Taxonomy of Spirlin Alburnoides sp in Iran Sedigheh Mahmoodi Dehalinaghi mahmoodi4@yahoo com Jan 21 2013 Department of Natural Resources Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Persian Dr Yazdan Keivany Keivany@cc iut ac ir Dr Salar Dorafshan sdorafshan@cc iut ac ir Abstract The genus Alburnoides belongs to the Cyprinidae family This genus has long been considered as a complex species with great diversity in Iran Six species were recently recognized in the Iranian basins of the Caspian Sea Kavir Namak Tigris Kor and Lake Orumiyeh incluing A eichwaldii A namaki A idignensis A nicolausi A qanati and A petrubanarescui respectively and more are expected to be discovered In the present study the morphological and molecular variations among these species have been investigated To study the morphological characteristic 22 morphometric and nine meristic characters of 144 specimens of these six species were used All measurements were recorded using a digital caliper to the nearest 0 01mm Nine meristic characters were counted under a binocular microscope For the molecular study sequences of cytochrome b mitochondrial gene 409 bp from the six species were analyzed three specimens of each species 18 PCR products in total The results of morphological data showed a high similarity among the species but could separate A nicolausi and A idignensis according to the first component and A idignensis and A petrubanarescui according to the second component in the principal component analysis Moreover based on the meristic characters which were relatively similar again A nicolausi and A idignensis could be separated by the first component Alburnoides eichwaldii was distinct from other species in the second component The results of molecular analysis showed A eichwaldii and A petrubanarescui as the most similar about 99 and A idigensisas the most different about 85 species with others The results of molecular analysis differentiated the six studied speices The phylogenetic analysis using Maximum Likelihood ML and Maximum Parsimony MP showed A idignensisas a separate taxon and A eichwaldii and A petrubanarescui as sister groups The cytochrome b gene sequences revealed a high level of genetic differentiation within and among the six species and demonstrated the suitability of partial cytochrome b gene 409 bp sequence in determining their genetic diversity In general due to some factors such as the small size low mobility and distribution isolation or limited population and small size of habitats of this fish it is possible that the species was evolved locally which could lead to some differences in the morphometric characteristics of the different species Keywords taxonomy morphometric and meristiccharacters mitochondrial cytochrome b gene

يزدان كيواني، سالار درافشان

منصوره ملكيان

عيسي ابراهيمي، محمودرضا همامي