10.5061/DRYAD.GTHT76HN9
Zhang, Xiuping
0000-0001-7571-9595
Fudan University
Daphnia sinensis genome
Dryad
dataset
2021
FOS: Biological sciences
2021-09-02T00:00:00Z
2021-09-02T00:00:00Z
en
135262500 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The genomic mechanism by which aquatic organisms adapt to high-altitude
environments remains unknown. In this study, we provide a high-quality
chromosome-level genome assembly (~133 Mb, scaffold N50 11.3 Mb) of a
water flea (Daphnia sinensis). This enabled us to discover that there have
been chromosomal rearrangements between two subgenera of Daphnia. We
further show that the D. sinensis population living on the Tibetan Plateau
exhibits several key genomic adaptive features (e.g., enhanced expression
of genes associated with DNA repair to cope with harmful UV radiation,
response to hypoxia and increased energy metabolism) to cope with the
extremely harsh environments at high altitude, when compared with
conspecific populations living in low-altitude habitats. These findings
provide important insights into the genetic basis of high-altitude
adaptation.