中国大鲵复合体谱系多样性及贵州分布中国大鲵的分类评估  

Lineage diversification of the Andrias davidianus complex and classification evaluation of the Chinese giant salamander in Guizhou

作　　者：周江 王思维 肖宁[2] 罗涛 汪星亮 王亚丽 ZHOU Jiang;WANG Siwei;XIAO Ning;LUO Tao;WANG Xingliang;WANG Yali(School of Karst Science,Guizhou Normal University,Guiyang,Guizhou 550001,China;Guiyang Nursing Vocational College,Guiyang 550081,China;School of Life Sciences,Guizhou Normal University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州师范大学喀斯特研究院,贵州贵阳550001 [2]贵阳护理职业学院,贵州贵阳550081 [3]贵州师范大学生命科学学院,贵州贵阳550025

出　　处：《贵州师范大学学报（自然科学版）》2021年第2期1-14,共14页Journal of Guizhou Normal University：Natural Sciences

基　　金：“中国科学院B类战略性先导科技专项(XDB31030108)”;国家动物标本资源库项目(2005DKA21402);贵州省科技厅自然科学项目(QKHJC[2016]1004);两栖类天然抗氧化肽作为化妆品抗氧化原料的应用(QKZYD[2020]4002)。

摘　　要：为探索新生代地质构造演化在塑造贵州及周边地区地质景观过程中,对现存动物分布模式的影响,选择中国大鲵复合体Andrias davidianus comlex作为研究物种,以线粒体基因组作为分子标记,探讨中新世地质构造事件对于中国大鲵复合体的系统发育和谱系分化。系统发育分析表明:在中国大鲵复合体中,有与地理区域相关的7个主要谱系(A-G),其中谱系C和谱系G分别被描述为华南大鲵A.sligoi(Boulenger,1924)和中国大鲵A.davidianus(Blanchard,1871),且贵州分布的大鲵在系统发育上应归属于华南大鲵。分歧时间表明:中国大鲵谱系与日本大鲵A.japonicus(Temminck,1836)与青藏高原中新世早期的隆升有关;中国大鲵复合体谱系B至谱系G在8.9~12.8 Ma的分化与中新世晚期青藏高原的强烈隆升和中新世晚期气候变暖期间有关;中新世早期的寒冷时期,全球海平面的下降以及东海陆架盆地的地理构造变化,在台湾-日本岛屿与亚洲大陆之间可能已跨海形成陆桥廊道,为日本大鲵从华南地区扩散到亚洲大陆提供了可能。研究认为,小区域范围内的造山运动及其引发的水系形成或改道和中新世中晚期古气候的波动是导致中国大鲵谱系多样化的主要原因。To understand the influence of Cenozoic geotectonic evolution on the distribution patterns of extant fauna during the shaping of the geological landscape in Guizhou and surrounding areas,in this study,we selected Andrias davidianus comlex as the study species and used the mitochondrial genome as a molecular marker to explore the phylogeny and genealogical differentiation of the Chinese giant salamander complex influenced by Miocene geotectonic events.Phylogenetic analysis showed that there are seven major lineages(A-G)associated with geographic regions in the Chinese giant salamander complex,of which lineage C and lineage G are described as A.sligoi(Boulenger,1924)and A.davidianus(Blanchard,1871),respectively,and that the salamanders distributed in Guizhou should be phylogenetically assigned to A.sligoi.The divergence times indicate that:the A.davidianus and A.japonicus are related to the early Miocene uplift of the Tibetan Plateau;the divergence of A.davidianus complex lineages B to G from 8.9 to 12.8 Ma is related to the strong uplift of the Tibetan Plateau during the late Miocene and the period of climate warming during the late Miocene;During the cold period in the early Miocene,the global sea level dropped and the geographic structure of the East China Sea shelf basin changed,which may have formed a land bridge corridor between the Taiwan-Japan islands and the Asian continent,providing a possibility for the A.japonicus to spread from South China to the Asian continent.In this study,our results suggested that the small-scale orogenic movements,the formation or diversion of water systems and the paleoclimate fluctuations in the middle and late Miocene are the main reasons for the diversification of the A.davidianus complex lineages.

关 键 词：两栖动物 地质演变 辐射扩散 系统发育分类 大鲵 

分 类 号：Q959[生物学—动物学]