Concurrent evolution of ancient sister lakes and sister species: the freshwater gastropod genus Radix in lakes Ohrid and Prespa
Concurrent evolution of ancient sister lakes and sister species: the freshwater gastropod genus Radix in lakes Ohrid and Prespa
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DOI：
10.1007/s10750-008-9555-1
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发表时间：
2008-12-01
期刊：
影响因子：
2.6
通讯作者：
Wilke, Thomas
中科院分区：
文献类型：
--
作者：
Albrecht, Christian;Wolff, Christian;Wilke, Thomas
古代姐妹湖被认为是地理位置接近的古代湖泊，共享相关的起源和重要的共存时间，通常具有水文联系以及平衡程度的动物区系重叠和独特性。研究姐妹湖关系的一个范例是巴尔干半岛的奥赫里德湖和普雷斯帕湖，其特点是高度的地方性。这些湖泊的特有种可分为三种模式：（1）两个湖泊都有特有种，在各自的姐妹湖中没有近亲;（2）两个湖泊中密切相关但不同的特有种（姐妹种）;（3）两个湖泊中共有的特有种。本文报道了两种我国特有的淡水肺形腹足类--Radix relicta（Lake Ohrid）和R. pinteri（Lake Prespa），根据世界各地根属植物的地理和比较DNA数据，研究了推测的姐妹种的进化。系统发育分析、地理分布分析和参数bootstrap分析均表明，该属的亲缘关系为姐妹群。relicta和R. pinteri（特有多样性模式2）。这两个分类群的姐妹是广泛分布的R。ampla，不出现在奥赫里德湖和普雷斯帕湖附近。奥赫里德湖的南部馈线弹簧复合体居住的另一个谱系（根属。1），这类似于根残体的形态/解剖。对于普雷斯帕湖，广泛分布的R.黑木耳（auricularia）是我国特有的黑木耳（R. pinteri。比较系统发育数据有利于西部亚得里亚海动物地理的亲和力奥赫里德湖和普雷斯帕在爱琴海-安纳托利亚动物群的连接。奥赫里德湖和普雷斯帕作为姐妹湖的地位进行了评估，根据目前的知识腹足动物的物种形成和特有性，在这些热点的生物多样性。
Ancient sister lakes are considered to be ancient lakes lying in close geographic proximity, sharing a related origin and significant time of co-existence, usually having hydrological connection as well as a balanced degree of faunal overlap and distinctness. A paradigm for studying sister lake relationships are the ancient lakes Ohrid and Prespa in the Balkans, which are characterized by high degrees of endemicity. Three general patterns of endemic species can be distinguished for these lakes: (1) taxa that are endemic to either lake, with no close relatives in the respective sister lake, (2) closely related but distinct endemic taxa in both lakes (sister species) and (3) shared endemic taxa occurring in both lakes. In the present paper, two endemic freshwater pulmonate gastropod species, Radix relicta (Lake Ohrid) and R. pinteri (Lake Prespa), are used to study the evolution of presumed sister species based on biogeographical and comparative DNA data from world-wide Radix taxa. Phylogenetic, phylogeographical and parametric bootstrap analyses all suggest a sister group relationship of R. relicta and R. pinteri (pattern 2 of endemic diversity). Sister to these two taxa is the widespread R. ampla, which does not occur in the vicinity of lakes Ohrid and Prespa. The southern feeder spring complexes of Lake Ohrid are inhabited by another lineage (Radix sp. 1), which resembles Radix relicta in morphology/anatomy. For Lake Prespa, the widespread R. auricularia was reported in addition to the endemic R. pinteri. Comparative phylogenetic data favour a western Adriatic zoogeographical affinity of lakes Ohrid and Prespa over an Aegean-Anatolian faunal connection. The status of lakes Ohrid and Prespa as sister lakes is evaluated in the light of current knowledge on gastropod speciation and endemism in these hotspots of biodiversity.