Evidence of Host Specificity and Congruence between Phylogenies of Bitterling and Freshwater Mussels

Huan-Zhang Liu ； Yu-Rong Zhu ； Carl Smith ； Martin Reichard

《Zoological Studies》 45卷3期 (2006/07) Pp. 428-434

並列摘要

Huan-Zhang Liu, Yu-Rong Zhu, Carl Smith, and Martin Reichard (2006) Evidence of Bitterling (Cyprinidae: Acheilognathinae) are freshwater fishes with a unique spawning relationship with freshwater mussels on whose gills they lay their eggs. During the breeding season of bitterling fishes, we collected 843 mussels belonging to 16 species from Lake Qinglan, central China and examined their gill chambers for the presence of bitterling larvae. Three species of bitterling larvae were identified; Acheilognathus tonkinensis, Ach. cf. meridianus, and Ach. barbatulus, in 3 species of mussel: Unio douglasiae, Lamprotula caveata, and L. tortuosa, suggesting host specialization. Using our own and other published data, we compared the respective phylogenies of bitterling and mussels, but failed to show clear congruence. However, broad specializations are evident, with Acheilognathus and Tanakia showing preferences for mussels with a relatively simple gill structure (Ableminae), and Rhodeus spp. showing preferences for mussels of the Anodontinae and Unioninae, which have more-complex gill structures.

並列關鍵字

Bitterling ； Host specificity ； Coevolution ； Phylogeny