塔里木河水系2种裂腹鱼类形态特征和骨骼形态的差异比较
Comparative study on morphological and skeletal differences of two Schizothorax species in Tarim River system
摘要
Abstract
[Objective]Comparative study on morphological and skeletal differences of two Schizothorax species in Tarim River system.The provide scientific reference for the systematic evolution and geographical distribution pattern of the plateau fish.[Methods]To study the external morphology and skeletal system of Schizothorax irregularis and Diptychus maculatus which are endemic to Xinjiang by anatomical comparison.Principal component analysis of morphological features was carried out by combining frame data and traditional quantifiable data and then the difference of bone morphology between CT scanning and boiling cutting was compared.[Results]Among 31 proportional traits of Schizothorax species,there were significant differences in 1-2/body length(BL)(P<0.05),body width(BW/BL)and other 25 proportional traits were signifi-cantly different(P<0.01);In the principal component analysis,the cumulative contribution rate of the first two principal components was 56.74%,and the difference was mainly reflected in the body head and the front torso.The number of cranial,pharyngeal and appendicular bones of the two Schizothorax species was the same,with 42,80 and 132,respectively.However,there were some differences in the number of vertebrae and ribs between the two Schizothorax species:there were 4+42-43+1 vertebrae and 20-21 ribs in S.ir-regularis(2 tails),and there were 4+34-35+1 spines and 17-18 ribs in D.maculatus(2 tails).On some bones,such as the 2nd preethmoid,sphenotic,pterotic,premaxilla,maxilla,pterygoid and mstapterygoid,especially in the pharyngeal,the differences between the two Schizothorax species were more pronounced.[Conclusion]The morphological and skeletal differences of the two Schizothorax species in the Tarim River system are obvious,and their evolutionary mechanisms are closely related to the uplift of the Qinghai-Tibet Plateau.The unique morphological and evolutionary characteristics and skeletal differences can be further served as the basis for the classification and identification of fish,which might enrich the biological data of their morphological and evolutionary evolution.关键词
塔里木河水系/厚唇裂腹鱼/斑重唇鱼/形态特征/骨骼解剖Key words
Tarim River system/Schizothorax irregularis/Diptychus maculatus/morphological character-istics/skeletal anatomy分类
农业科技引用本文复制引用
王程欣,胡令辉,杨莉婷,林旭元,胡伯林,袁智长,宋勇,陈生熬..塔里木河水系2种裂腹鱼类形态特征和骨骼形态的差异比较[J].新疆农业科学,2024,61(10):2566-2575,10.基金项目
农业农村部财政专项(西北地区重点水域渔业资源与环境调查) （西北地区重点水域渔业资源与环境调查）
新疆生产建设兵团重点领域科技攻关计划"南疆盐碱水渔业综合开发利用关键技术集成与示范"(2022DB019) （2022DB019）
塔里木畜牧科技兵团重点实验室项目"伊犁裂腹鱼人工繁殖关键技术研究"(HS201902) Special Financial Project of Ministry of Agriculture and Rural Affairs(Fishery Resources and Environment Survey in Key Waters of Northwest China) （HS201902）
Science and Technology Public Relations Plan in Key Areas of XPCC Science and Technology Bureau"Integra-tion and Demonstration of Key Technologies for Comprehensive Development and Utilization of Saline-alkali Water Fishery in South-ern Xinjiang"(2022DB019) （2022DB019）
Key Laboratory Project of Tarim Animal Science and Technology of XPCC"Research on Key Tech-niques of Artificial Breeding of Schizothorax pseudaksaiensis"(HS201902) （HS201902）
