یافته های نوین در علوم زیستی

استخوان‌شناسی مقایسه‌ای Chondrostoma orientale و C. nasus

نویسندگان

سیدعلی معزی 1
یزدان کیوانی 2
بنینیو الوایرا 3

1 دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان، ایران

2 گروه شیلات، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان، ایران

3 گروه تنوع زیستی، بوم شناسی و تکامل، دانشگاه کامپلوتنس مادرید، مادرید، اسپانیا

https://doi.org/10.52547/nbr.7.3.278
چکیده




مقایسه ساختارهای ریختی، یک عنصر کلیدی در زیست­شناسی تکاملی است که هم در آرایه­شناسی و هم در درک تنوع موجودات کاربرد دارد. اﻳﻦ ﻣﻄﺎﻟﻌﻪ ﺑﺎ ﻫﺪف مقایسه ساختارهای استخوانی Chondrostoma orientale و C. nasus به اجرا درآمد. برای این منظور سه نمونه از C. orientale از رودخانه کر ایران و پنج نمونه از C. nasus از حوضه رودخانه­های دانوب، دنیپر و رون و دریاچه اوهرد بررسی شدند. نتایج نشان داد که دو زائده قدامی استخوان فراپرویزنی در C. orientale نسبت به C. nasus فاصله بیشتری ازهم دارند. نمای قدامی استخوان فراپرویزنی در C. orientale مقعر ولی در C. nasus تقریباً صاف است. زائده حلقی- خلفی در استخوان قاعده­ای پس­سری در C. orientale پهن و مثلثی­شکل و در C. nasus باریک و مستطیلی­شکل است. زائده بالارونده میانی- جانبی استخوان فکی در C. orientaleمتمایل به جلو، درحالی­که در C. nasus کمی به سمت عقب متمایل شده است. زائده پایین­رونده استخوان فکی در C. orientale بلند و در C. nasus کوتاه است. استخوان پیش­فکی در C. orientale دارای زائده بالارونده منقاری است، در حالی­که در C. nasusوجود ندارد. بخش قدامی استخوان دندانی در C. orientale باریک و کشیده و زائده منحنی به صورت عمود بر وسط استخوان دندانی قرار گرفته، درحالی­که در C. nasus بخش قدامی استخوان دندانی کوتاه و پهن و زائده منحنی به سمت جلو متمایل شده است.



واژه‌های کلیدی:







SayyedAli Moezzi1, Yazdan Keivany2 & Benigno Elvira3

1MSc Graduate, Department of Natural Resources (Fisheries Divission), Isfahan University of Technology, Isfahan, Iran; 2Department of Natural Resources (Fisheries Divission), Isfahan University of Technology, Isfahan, Iran; 3Department of Biodiversity, Ecology and Evolution, Complutense University of Madrid (UCM), Madrid, Spain

Correspondent author: SayyedAli Moezzi, moezzi.sayyed.ali@ut.ac.ir



Abstract.

Keywords.

کلیدواژه‌ها

استخوان
اسکلت
رودخانه کر
کپور
نازک

عنوان مقاله English

Comparative osteology of Chondrostoma orientale and C. nasus

نویسندگان English

Sayyed Ali Moezzi 1
Yazdan Keivany 2
Benigno Elvira 3
1 Department of Natural Resources (Fisheries Divission), Isfahan University of Technology, Isfahan, Iran
چکیده English

Comparison of morphological structures is a key element in evolutionary biology and taxonomy, as well as in the studies concerning variation and biodiversity either at interspecific or intraspecific levels. This study aimed to compare the bony structures of Chondrostoma orientale and C. nasus. For this purpose, three specimens of C. orientale from the Kor River (passing through Iran), and five specimens of C. nasus from the Danube (passing through Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine), Dnieper (passing through Russia, Belarus and Ukraine) and Rhône river basins (passing through Switzerland and France), as well as Lake Ohrid (Located between Macedonia and Albania) were analysed. The results showed that the two anterior lateral processes of supraethmoid bone were more distant in C. orientale than those in C. nasus. The anterior profile of the supraetmoid bone was concave in C. orientale, while it was almost flat in C. nasus. The posterior pharyngeal process in the basioccipital was wide and triangular in C. orientale and narrow and rectangular in C. nasus. The maxillary mid-lateral ascending process was slightly inclined forward in C. orientale, while it was slightly inclined backward in C. nasus. The maxillary distal process was long in C. orientale and it was short in C. nasus. The premaxillary had a rostral ascending process in C. orientale, while it was missing in C. nasus. The anterior portion of the dentary was narrow and elongated in C. orientale and the coronoid process was perpendicular and located in the middle of the dentary; in contrast, the anterior portion of the dentary was short and wide in C. nasus and the coronoid process was inclined forward.

کلیدواژه‌ها English

bone
Cyprinid
Kor River
Nase
skeleton
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  • تاریخ دریافت 18 خرداد 1405
  • تاریخ انتشار 18 خرداد 1405

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