Catfishes of the Genus Glyptothorax (Siluriformes: Sisoridae) in the Mae Klong River Basin, Thailand, with Taxonomic Implications for Several Southeast Asian Species
Catfishes of the Genus Glyptothorax (Siluriformes: Sisoridae) in the Mae Klong River Basin, Thailand, with Taxonomic Implications for Several Southeast Asian Species
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DOI：
10.1643/i2022045
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发表时间：
2023-06
影响因子：
1.5
通讯作者：
David A. Boyd;S. Tongnunui;L. Page
中科院分区：
文献类型：
--
作者：
David A. Boyd;S. Tongnunui;L. Page
在泰国西部的 Mae Klong 河流域发现了 5 种雕胸鱼，其中只有一种 G. buchanani 以前曾在该流域报道过；其他有 G. lampris、G. longinema、G. platypogonides 和 G. schmidti。通过对 105 个标本的数据进行主成分分析，描绘了湄公河雕胸鱼物种的形态差异，并且发现所有发生的河流流域的纬度范围和数量都比之前认识的要大。 Glyptothorax platypogonides 最近被认为仅分布在泰国半岛北部，分布在泰国西部和北部的湄公河盆地和湄南河盆地。施密提纹胸鱼曾被认为仅分布在缅甸德林达依河以北的地区，但人们发现它的分布范围要广泛得多，包括湄公河流域、湄南河流域和湄公河流域的种群。在中国以外的萨尔温江流域和湄公河流域发现了长线纹胸鱼。 G. lampris 在湄南河中的存在受到质疑，其南部分布范围已扩展到塔皮河流域。对来自东南亚各地的 127 个个体的 COI 序列数据进行系统发育重建，揭示了对泰国 14 个物种识别的强大 BI 和 ML 支持，并提出了根深蒂固的进化枝，这些进化枝被讨论为广泛对应于身体颜色。 Glyptothorax callopterus 被发现在遗传上与 G. fuscus 不同，并且是从同义中复活的。提供了泰国所有纹胸鱼物种的钥匙。
Five species of Glyptothorax are identified from the Mae Klong River basin in western Thailand, only one of which, G. buchanani, was previously reported from the basin; others are G. lampris, G. longinema, G. platypogonides, and G. schmidti. The morphological differences delineating species of Glyptothorax in the Mae Klong were visualized using principal component analysis of data taken from 105 specimens, and the latitudinal range and number of river basins over which all occur were found to be greater than previously recognized. Glyptothorax platypogonides, recently thought to range only as far north as peninsular Thailand, occurs in the Mae Klong and Chao Phraya basins in western and northern Thailand. Glyptothorax schmidti, thought to occur only as far north as the Tanintharyi River, Myanmar, was found to be much more wide-ranging, with the inclusion of populations in the Mae Klong, Chao Phraya, and Mekong River basins. Glyptothorax longinema was found to occur outside of China in lower portions of the Salween River basin and in the Mae Klong basin. The presence of G. lampris in the Chao Phraya is questioned and its southern distributional limit was extended to the Tapi River basin. Phylogenetic reconstruction of COI sequence data for 127 individuals from across Southeast Asia revealed strong BI and ML support for recognition of 14 species in Thailand and suggested deep-rooted clades that are discussed as corresponding broadly to body coloration. Glyptothorax callopterus was found to be genetically distinct from G. fuscus and is resurrected from synonymy. A key to all species of Glyptothorax in Thailand is provided.