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Ng Wing Tin S Martin-Duverneuil N Idbaih A Garel C Ribeiro M Parker JL Defachelles AS Lambilliotte A Barkaoui M Munzer M Gardembas M Sibilia J Lutz P Fior R Polak M Robert A Aumaitre O Plantaz D Armari-Alla C Genereau T Berard PM Talom GN Pennaforte JL Le Pointe HD Barthez MA Couillault G Haroche J Mokhtari K Donadieu J Hoang-Xuan K;French LCH study group 《Orphanet journal of rare diseases》2011,6(1):83
99.
Molecular evolution of mammalian aquaporin-2: further evidence that elephant shrew and aardvark join the paenungulate clade 总被引:1,自引:1,他引:0
Madsen O; Deen PM; Pesole G; Saccone C; de Jong WW 《Molecular biology and evolution》1997,14(4):363-371
A 328-bp sequence from exon 1 of the gene for aquaporin-2 (AQP2) was
compared in 12 mammalian species, representing as many eutherian orders.
This sequence encodes the N-terminal half of this kidney- specific water
channel protein. Most amino acid replacements, as well as an insertion,
have occurred in extracellular loops connecting the transmembrane helices,
in agreement with a lower functional importance of these loops.
Phylogenetic analyses were performed with parsimony, distance, and
maximum-likelihood methods. The AQP2 data set, alone as well as in
combination with previously published alpha A-crystallin protein sequences,
strongly supports a clade consisting of elephant, hyrax, aardvark, and
elephant shrew, reaching bootstrap values of 99%. This finding fully agrees
with the only other presently available sequence data sets that include
these taxa, those of von Willebrand factor and interphotoreceptor
retinoid-binding protein, and suggests that this extended paenungulate
clade is one of the most conspicuous superordinal groupings in eutherian
phylogeny. Some support was obtained for an artiodactyl/perissodactyl
clade, while the grouping of pholidotes with edentates was contradicted.
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Alien fishes are considered a major threat to aquatic biodiversity in South Africa, yet relatively little regional information on their biology and ecology is available for many of these species. Seasonal changes in the diet of the bluegill Lepomis macrochirus in Howieson’s Poort Dam, Grahamstown, were assessed during summer and winter in 2014–2015, using stomach content analysis. In winter, juvenile and adult fish diets were dominated by crustacean zooplankton and insects, respectively. In summer, juvenile fish fed on crustaceans and insects, whereas adults consumed mostly fish eggs, indicating a potential impact by these invasive fish on native fish through oophagy. 相似文献