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Bipolar dispersal of red-snow algae.

ABSTRACT: Red-snow algae are red-pigmented unicellular algae that appear seasonally on the surface of thawing snow worldwide. Here, we analyse the distribution patterns of snow algae sampled from glaciers and snow patches in the Arctic and Antarctica based on nuclear ITS2 sequences, which evolve rapidly. The number of phylotypes is limited in both polar regions, and most are specific to either the Arctic or Antarctica. However, the bipolar phylotypes account for the largest share (37.3%) of all sequences, suggesting that red-algal blooms in polar regions may comprise mainly cosmopolitan phylotypes but also include endemic organisms, which are distributed either in the Arctic or Antarctica.

SUBMITTER: Segawa T

PROVIDER: S-EPMC6079020 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Bipolar dispersal of red-snow algae.

Segawa Takahiro T Matsuzaki Ryo R Takeuchi Nozomu N Akiyoshi Ayumi A Navarro Francisco F Sugiyama Shin S Yonezawa Takahiro T Mori Hiroshi H

Nature communications 20180806 1

Red-snow algae are red-pigmented unicellular algae that appear seasonally on the surface of thawing snow worldwide. Here, we analyse the distribution patterns of snow algae sampled from glaciers and snow patches in the Arctic and Antarctica based on nuclear ITS2 sequences, which evolve rapidly. The number of phylotypes is limited in both polar regions, and most are specific to either the Arctic or Antarctica. However, the bipolar phylotypes account for the largest share (37.3%) of all sequences, ...[more]

PMID: 30082897

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