Payton, Laura and Noirot, Céline and Last, Kim S. and Grigor, Jordan and Hüppe, Lukas and Conway, David V. P. and Dannemeyer, Mona and Suin, Amandine and Meyer, Bettina
(2022)
Annual transcriptome of a key zooplankton species, the copepod Calanus finmarchicus.
Ecology and Evolution, 12 (2).
ISSN 2045-7758
Abstract
he copepod Calanus finmarchicus (Crustacea, Copepoda) is a key zooplanktonic spe-
cies with a crucial position in the North Atlantic food web and significant contributor to
ocean carbon flux. Like many other high latitude animals, it has evolved a programmed
arrested development called diapause to cope with long periods of limited food sup-
ply, while growth and reproduction are timed to take advantage of seasonal peaks
in primary production. However, anthropogenic warming is inducing changes in the
expected timing of phytoplankton blooms, suggesting phenological mismatches with
negative consequences for the N. Atlantic ecosystem. While diapause mechanisms
are mainly studied in terrestrial arthropods, specifically on laboratory model species,
such as the fruit fly Drosophila, the molecular investigations of annual rhythms in wild
marine species remain fragmentary. Here we performed a rigorous year-long monthly
sampling campaign of C. finmarchicus in a Scottish Loch (UK; 56.45°N, 5.18°W) to
generate an annual transcriptome. The mRNA of 36 samples (monthly triplicate of
25 individuals) have been deeply sequenced with an average depth of 137 ± 4 million
reads (mean ± SE) per sample, aligned to the reference transcriptome, and filtered.
We detail the quality assessment of the datasets and provide a high-quality resource
for the investigation of wild annual transcriptomic rhythms (35,357 components) in a
key diapausing zooplanktonic species.
Actions (login required)
 |
View Item |
