Interspecific morphological variation among members of the genus Cyprinion Heckel, 1843 (Teleostei: Cyprinidae) in Iran, using landmark-based geometric morphometric technique

Iranian Journal of Ichthyology Pub Date : 2019-03-25 DOI:10.22034/IJI.V6I1.404

M. Nasri, S. Eagderi, H. Farahmand, Hasan Nezhadheydari

{"title":"Interspecific morphological variation among members of the genus Cyprinion Heckel, 1843 (Teleostei: Cyprinidae) in Iran, using landmark-based geometric morphometric technique","authors":"M. Nasri, S. Eagderi, H. Farahmand, Hasan Nezhadheydari","doi":"10.22034/IJI.V6I1.404","DOIUrl":null,"url":null,"abstract":"Morphological variation among Cyprinion species in Iran was studied using landmark-based geometric morphometrics. A total of 848 specimens were caught from five basins throughout Iran during 2013-2015. A total number of 15 landmark-points were defined and digitized on 2D pictures. Despite of intraspecific differences among Cyprinion fishes, CVA divided all populations into three major groups viz. C. macrostomum , C. kais and C. tenuiradius (group X), C. watsoni and C. microphthalmum (group Y ) and C. milesi (group Z). According to the results, C. macrostomum group can be distinguished from other groups by having deeper body, least head length and depth, the longest dorsal-fin base and least caudal peduncle length. Cyprinion milesi has the longest anal-fin base, least body depth, deepest caudal peduncle and longest head. Cyprinion watsoni has the longest caudal peduncle and least dorsal-fin base and C. microphthalmum is distinguished by having the least caudal peduncle length and depth. The main reasons of observed intraspecies morphological diversity among the fishes is proposed to be some phenotypic plasticity related to climatic and zoogeographical factors. The results suggest that the most possible factor influencing morphological variations among Iranian Cyprinion species is habitat related differences.","PeriodicalId":14599,"journal":{"name":"Iranian Journal of Ichthyology","volume":"6 1","pages":"54-64"},"PeriodicalIF":0.0000,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Ichthyology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22034/IJI.V6I1.404","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

Morphological variation among Cyprinion species in Iran was studied using landmark-based geometric morphometrics. A total of 848 specimens were caught from five basins throughout Iran during 2013-2015. A total number of 15 landmark-points were defined and digitized on 2D pictures. Despite of intraspecific differences among Cyprinion fishes, CVA divided all populations into three major groups viz. C. macrostomum , C. kais and C. tenuiradius (group X), C. watsoni and C. microphthalmum (group Y ) and C. milesi (group Z). According to the results, C. macrostomum group can be distinguished from other groups by having deeper body, least head length and depth, the longest dorsal-fin base and least caudal peduncle length. Cyprinion milesi has the longest anal-fin base, least body depth, deepest caudal peduncle and longest head. Cyprinion watsoni has the longest caudal peduncle and least dorsal-fin base and C. microphthalmum is distinguished by having the least caudal peduncle length and depth. The main reasons of observed intraspecies morphological diversity among the fishes is proposed to be some phenotypic plasticity related to climatic and zoogeographical factors. The results suggest that the most possible factor influencing morphological variations among Iranian Cyprinion species is habitat related differences.

查看原文本刊更多论文

使用基于地标的几何形态测量技术，伊朗Cyprinion Heckel属成员的种间形态变异，1843

采用基于地标的几何形态计量学方法研究了伊朗鲤科植物的形态变异。2013-2015年期间，在伊朗的五个盆地共捕获了848只标本。共定义了15个地标点，并在二维图像上数字化。尽管鲤科鱼类之间存在种内差异，但CVA将所有种群划分为3个主要类群，即C. macrostomum、C. kais和C. tenuiradius (X组)、C. watsoni和C. microphthalmum (Y组)和C. milesi (Z组)。结果表明，C. macrostomum类群具有较深的体长、最小的头长和深度、最长的背鳍基部和最小的尾梗长度，可以与其他类群区分。米勒西鲤有最长的肛门鳍基部，最小的身体深度，最深的尾鳍和最长的头。棘鱼的尾端花序柄最长，背鳍基部最小，而棘鱼的尾端花序柄长度和深度最小。鱼类种内形态多样性的主要原因是与气候和动物地理因素有关的表型可塑性。结果表明，影响伊朗鲤科植物形态差异的最可能因素是生境相关差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Iranian Journal of Ichthyology Agricultural and Biological Sciences-Aquatic Science

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： Iranian Journal of Ichthyology (IJI) is a peer-reviewed journal for publication of high quality papers on any aspect of ichthyology and will be published 4 times a year by the Iranian Society of Ichthyology (http://www.isi-org.ir). The journal welcomes the submission of manuscripts that meets the general criteria of significance and scientific excellence, and will publish original scientific articles in the fields of ichthyology. The editors welcome the submission of original manuscripts including Research Articles, Short communications, and Views & News. Review papers by distinguished authors and Special Issues will also be considered. It is our aim to provide the international scientific community with an efficiently published journal, meeting high scientific and technical standards. Scopes of Iranian Journal of Ichthyology includes: Systematics, taxonomy, morphology, anatomy, biogeography, biodiversity, conservation, ecology and general biology of fishes (reproduction, food and feeding habits, age and growth, population dynamics, etc.). Papers on freshwater, brackish, marine and fossil fishes will be considered.