10.5061/DRYAD.18DF7
Ben-Hamo, Miriam
Ben-Gurion University of the Negev
Muñoz-Garcia, Agusti
Ben-Gurion University of the Negev
Larrain, Paloma
Ben-Gurion University of the Negev
Pinshow, Berry
Ben-Gurion University of the Negev
Korine, Carmi
Ben-Gurion University of the Negev
Williams, Joseph
The Ohio State University
Data from: The cutaneous lipid composition of bat wing and tail membranes:
a case of convergent evolution with birds
Dryad
dataset
2016
Bat
Eptesicus bottae
Pipistrellus kuhlii
Plecotus christii
Ceramides
Otonycteris hemprichii
Avian
Sphingolipids
Chiroptera
2016-05-23T13:48:11Z
2016-05-23T13:48:11Z
en
https://doi.org/10.1098/rspb.2016.0636
45546 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The water vapour permeability barrier of mammals and birds resides in the
stratum corneum (SC), the outermost layer of the epidermis. The molar
ratio and molecular arrangement of lipid classes in the SC determine the
integrity of this barrier. Increased chain length and polarity of
ceramides, the most abundant lipid class in mammalian SC, contribute to
tighter packing and thus to reduced cutaneous evaporative water loss
(CEWL). However, tighter lipid packing also causes low SC hydration,
making it brittle, whereas high hydration softens the skin at the cost of
increasing CEWL. Cerebrosides are not present in the mammalian SC; their
pathological accumulation occurs in Gaucher's disease, which leads to
a dramatic increase in CEWL. However, cerebrosides occur normally in the
SC of birds. We tested the hypothesis that cerebrosides are also present
in the SC of bats, because they are probably necessary to confer
pliability to the skin, a quality needed for flight. We examined the SC
lipid composition of four sympatric bat species and found that, as in
birds, their SC has substantial cerebroside contents, not associated with
a pathological state, indicating convergent evolution between bats and
birds.
Sphingolipid composition in 4 species of batsTRi is torpor index
calculated for each bat; ssCEWL is surface area specific cutaneous water
lossDryad raw data PRSL Mar 18 2016.xlsx
Negev desert
Israel