Macro-evolutionary patterns of East Asian opsariichthyin-xenocyprinin-cultrin fishes related to the formation of river and river-lake environments under monsoon climate
Macro-evolutionary patterns of East Asian opsariichthyin-xenocyprinin-cultrin fishes related to the formation of river and river-lake environments under monsoon climate
复制标题
季风气候下东亚opsariichthyin-xenocyprinin-cultrin鱼类与河流和河湖环境形成相关的宏观进化模式
DOI：
10.1016/j.watbs.2022.100036
复制
发表时间：
2022-05-01
期刊：
影响因子：
--
通讯作者：
Liu, Huanzhang
中科院分区：
文献类型：
--
作者：
Cheng, Peilin;Yu, Dan;Liu, Huanzhang
尽管东亚季风被认为是该地区生物起源和进化的重要驱动力，但这种联系很少得到严格的检验。本文采用系统发育比较方法和适应性状关键创新分析，研究了东亚鲤科opsariichthyin-xenocyprinin-cultrin支系的进化模式；湖泊和河流中的优势种，是季风气候的典型产物。分子系统发育分析表明：（Opsariichthys-tribe) + ((Oxygaster-tribe + aphyocypriss -tribe) + Metzia-tribe) + (paraubuca -tribe) + (Squaliobarbus-tribe + (Hypophthalmichthys-tribe) + (xen-ocyprinins + cultrins))))))）。基于贝叶斯松弛时钟方法，我们发现Squaliobarbus-和hypophthalmichthys -部落的起源分别发生在22.5万年和21.1万年，它们具有在河流中漂流产卵的关键适应性。这些时间与早中新世主要河流（如长江）的起源和东亚季风气候的出现相一致。据估计，在16.6至0.2亿年的进化过程中，这些鱼类的多样化，其特征是产卵黏附卵，以及在无水水域游泳和觅食。这一时期涵盖了中新世中期至上新世东亚季风增强的三个阶段（约15-13、10-7和3.5亿）。这些生物的栖息地及其演变也表明了这一时期湖泊-河流环境的出现和发展。因此，我们的研究结果表明这些鱼类的进化与东亚的地质事件密切相关。此外，它们提供的知识可能有助于促进未来的保护策略，例如在大坝建设和运营期间维持高流量的河流。
Although the East Asian monsoon is believed to be an important driver for the origin and evolution of the biotas in this region, the association has rarely been rigorouslytested. Here, using phylogenetic comparative methods and analyses of key innovations of adaptive traits, we investigated evolutionary patterns of the East Asian cyprinid opsariichthyin-xenocyprinin-cultrin clade; the dominant species in lakes and rivers, which are the typical productions of monsoon climate. Our molecular phylogenetic analyses revealed the relationships as (Opsariichthys-tribe + (((Oxygaster-tribe + Aphyocypris-tribe) + Metzia-tribe) + (Paralaubuca-tribe + (Squaliobarbus-tribe + (Hypophthalmichthys-tribe + (xen-ocyprinins + cultrins)))))). Based on Bayesian relaxed-clock methods, we found that origins of the Squaliobarbus- and Hypophthalmichthys-tribes bearing the key adaptation of riverine spawning with drifting eggs occurred 22.5 and 21.1 Mya, respectively. These times are consistent with the Early Miocene origin of major rivers (e.g., Yangtze River) and the appearance of the East Asian monsoon climate. Diversification of the cultrins, characterized by spawning of adhesive eggs as well as swimming and feeding in lentic waters, were estimated to have evolved 16.6 to 0.2 Mya. This period covers three phases of enhancement of the East Asian monsoon from the Middle Miocene to the Pliocene (around 15-13, 10-7, and 3.5 Mya). The habitats of these cultrins and their evolution also suggest the appearance and devel-opment of a lake-river environment during those periods. Therefore, our results suggest close relationships between the evolution of these fishes and geological events in East Asia. Further, they provide knowledge that may help facilitate future conservation strategies such as the maintenance of high river flows during dam construction and operation.