Phylogeography of the Chydorus sphaericus Group (Cladocera: Chydoridae) in the Northern Palearctic.

ABSTRACT: The biodiversity and the biogeography are still poorly understood for freshwater invertebrates. The crustacean Chydorus sphaericus-brevilabris complex (Cladocera: Chydoridae) is composed of species that are important components of Holarctic freshwater food webs. Recent morphological and genetic study of the complex has indicated a substantial species diversity in the northern hemisphere. However, we know little of the geographic boundaries of these novel lineages. Moreover, a large section of the Palearctic remains unexamined at the genetic level. Here we attempt to address the biodiversity knowledge gap for the Chydorus sphaericus group in the central Palearctic and assess its diversity and biogeographic boundaries. We sequenced nuclear (ITS-2) and mitochondrial (COI) gene regions of Chyd

SUBMITTER: Kotov AA 

PROVIDER: S-EPMC5167426 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature