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Transcriptome reveals genes involving in black skin color formation of ducks
Lei Wang,Hehe Liu,Bo Hu,Jiwei Hu,Hengyong Xu,Hua He,Chunchun Han,Bo Kang,Lili Bai,Rongping Zhang,Jiwen Wang,Shengqiang Hu,Liang Li 한국유전학회 2021 Genes & Genomics Vol.43 No.2
Background Skin color is colorful for birds, which has been reported to be associated with multi-biological functions, such as crypsis, camoufage, social signaling and mate choice, but little is known about its underlying molecular mechanism. Objective Studies on the major genes afecting the black skin color of ducks. Methods For this purpose, Silver ammonia staining and RNA-seq analysis were carried out to identify the diferences in tissue morphology and gene expressions between black and yellow skin ducks. Results The silver ammonia dyes slice results showed that in the development of black duck, the content of melanin in black skin gradually increased and then decreased, and the content of melanin in yellow and black skin was signifcantly diferent. Through transcriptome, a total of 102 and 84 diferentially expressed genes (DEGs) were identifed in beak skin and web skin, respectively. These DEGs were enriched in melanin biosynthesis and play a critical role in melanogenesis pathway. Co-expression analysis showed that EDNRB2 was the only gene associated with black skin color in DEGs, which was also consistent with qRT-PCR. Conclusions The melanin synthesis pathway dominated by EDNRB2 up-regulated the amount of melanin synthesis, leading to the formation of black skin in ducks.
Ze Luo,Jinlong Li,Guozhe Sui,Yan Zhuang,Dongxuan Guo,Rongping Xu,Shuang Liang,Hong Yao,Chao Wang,Shijie Chen 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.8
Developing an efficient, environmentally friendly, and pollution-free catalyst with excellent visible light catalyticactivity is a promising strategy for dye wastewater treatment. Herein, the rod-like hollow BiOClxBr1x (x=1, 0.75, 0.5,0.25, 0), with an adjustable band gap, was successfully prepared using Bi-based metal-organic framework as template. The corresponding hollow assembly and introduction of Br imparted valuable structural advantages and intrinsic characteristicsfor improved photocatalytic activity. Significantly, the degradation efficiency of BiOCl0.5Br0.5 for the RhodamineB (RhB) solution reached 92% under visible light illumination for 90 min, which is considerably higher than that ofCAU-17-derived Bi2O3 and BiOCl. Overall, these findings shed fundamental insight on constructing novel photocatalystswith excellent visible light driven photocatalytic activity and offered a new method for treating dye wastewater.
Guozhe Sui,Yulin Zhang,Jinlong Li,Yan Zhuang,Dongxuan Guo,Ze Luo,Rongping Xu,Shuang Liang,Hong Yao,Chao Wang 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.4
Organic pollutants in dyed wastewater are hazardous to human health and the environment. The photocatalyticdegradation of pollutants is considered a green treatment with significant social and environmental benefits. Inthis study, hollow BiOCl/TiO2 nanotubes with open pores at both ends, prepared by hydrothermal synthesis, weremodified using phosphoric acid to promote photoelectron transfer. The hollow nanotubes offer an increased numberof electroactive sites, which enhances the photoelectric transfer efficiency and reduces the electron-hole recombinationrate. The modification by H3PO4 significantly optimized the photocatalytic activity of the nanotubes. The results showthat the H3PO4 modified hollow BiOCl/TiO2 (molar ratio of BiOCl to TiO2 is 0.8) nanotubes exhibited the most efficientphotocatalytic performance toward rhodamine B (RhB) with a photodegradation efficiency of up to 98.8% undervisible-light illumination. These nanotubes have broad application prospects for the effective removal of organic pollutantsfrom wastewater and can potentially inform future research on photocatalysts.