Integrated Analysis of Quantitative Proteome and Transcriptional Profiles Reveals the Dynamic Function of Maternally Expressed Proteins After Parthenogenetic Activation of Buffalo Oocyte.
Fumei Chen: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China. ORCID
Qiang Fu: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Liping Pu: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Pengfei Zhang: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Yulin Huang: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Zhen Hou: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Zhuangzhuang Xu: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Dongrong Chen: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Fengling Huang: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China.
Tingxian Deng: ��Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Buffalo Research Institute, Chinese Academy of Agricultural Science, Nanning, Guangxi 530001, China. ORCID
Xianwei Liang: ��Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Buffalo Research Institute, Chinese Academy of Agricultural Science, Nanning, Guangxi 530001, China liangbri@126.com.
Yangqing Lu: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China; luyangqing@126.com.
Ming Zhang: From the ���State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresource, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi 530004, China; mingzhang@gxu.edu.cn.
Maternal-effect genes are especially critical for early embryonic development after fertilization and until massive activation of the embryonic genome occurs. By applying a tandem mass tag (TMT)-labeled quantitative proteomics combined with RNA sequencing approach, the proteome of the buffalo was quantitatively analyzed during parthenogenesis of mature oocytes and the two-cell stage embryo. Of 1908 quantified proteins, 123 differed significantly. The transcriptome was analyzed eight stages (GV, MII, 2-cell, 4-cell, 8-cell, 16-cell, morula, blastocyst) of Buffalo using the RNA sequencing approach, and a total of 3567 unique genes were identified to be differently expressed between all consecutive stages of pre-implantation development. Validation of proteomics results (TUBB3, CTNNA1, CDH3, MAP2K1), which are involved in tight junction and gap junction, revealing that the maternal expression of the proteins possibly plays a role in the formation of cellular junctions firstly after parthenogenetic activation. Correlation and hierarchical analyses of transcriptional profiles and the expression of NPM2 and NLRP5 mRNA of buffalo developed oocytes and parthenogenetic embryos indicated that the "maternal-to-zygotic transition" (MZT) process might exist in the model of parthenogenesis, which is similar to a normally fertilized embryo, and may occur between the 8-cell to 16-cell stage. These data provide a rich resource for further studies on maternal proteins and genes and are conducive to improving nuclear transfer technology.
