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Mishra DC, Bhati J, Yadav S, Avashthi H, Sikka P, Jerome A, Balhara AK, Singh I, Rai A, Chaturvedi KK. Comparative expression analysis of water buffalo ( Bubalus bubalis) to identify genes associated with economically important traits. Front Vet Sci 2023; 10:1160486. [PMID: 37252384 PMCID: PMC10213454 DOI: 10.3389/fvets.2023.1160486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/11/2023] [Indexed: 05/31/2023] Open
Abstract
The milk, meat, skins, and draft power of domestic water buffalo (Bubalus bubalis) provide substantial contributions to the global agricultural economy. The world's water buffalo population is primarily found in Asia, and the buffalo supports more people per capita than any other livestock species. For evaluating the workflow, output rate, and completeness of transcriptome assemblies within and between reference-free (RF) de novo transcriptome and reference-based (RB) datasets, abundant bioinformatics studies have been carried out to date. However, comprehensive documentation of the degree of consistency and variability of the data produced by comparing gene expression levels using these two separate techniques is lacking. In the present study, we assessed the variations in the number of differentially expressed genes (DEGs) attained with RF and RB approaches. In light of this, we conducted a study to identify, annotate, and analyze the genes associated with four economically important traits of buffalo, viz., milk volume, age at first calving, post-partum cyclicity, and feed conversion efficiency. A total of 14,201 and 279 DEGs were identified in RF and RB assemblies. Gene ontology (GO) terms associated with the identified genes were allocated to traits under study. Identified genes improve the knowledge of the underlying mechanism of trait expression in water buffalo which may support improved breeding plans for higher productivity. The empirical findings of this study using RNA-seq data-based assembly may improve the understanding of genetic diversity in relation to buffalo productivity and provide important contributions to answer biological issues regarding the transcriptome of non-model organisms.
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Affiliation(s)
- Dwijesh Chandra Mishra
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
| | - Jyotika Bhati
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
| | - Sunita Yadav
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
| | - Himanshu Avashthi
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
| | - Poonam Sikka
- ICAR-Central Institute for Research on Buffaloes, Indian Council of Agricultural Research (ICAR), Hisar, India
| | - Andonissamy Jerome
- ICAR-Central Institute for Research on Buffaloes, Indian Council of Agricultural Research (ICAR), Hisar, India
| | - Ashok Kumar Balhara
- ICAR-Central Institute for Research on Buffaloes, Indian Council of Agricultural Research (ICAR), Hisar, India
| | - Inderjeet Singh
- ICAR-Central Institute for Research on Buffaloes, Indian Council of Agricultural Research (ICAR), Hisar, India
| | - Anil Rai
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
| | - Krishna Kumar Chaturvedi
- ICAR-Indian Agricultural Statistics Research Institute, Indian Council of Agricultural Research (ICAR), PUSA, New Delhi, India
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Low expression of miR-19a-5p is associated with high mRNA expression of diacylglycerol O-acyltransferase 2 (DGAT2) in hybrid tilapia. Genomics 2021; 113:2392-2399. [PMID: 34022348 DOI: 10.1016/j.ygeno.2021.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 04/06/2021] [Accepted: 05/17/2021] [Indexed: 11/24/2022]
Abstract
DGAT2 (acyl CoA:diacylglycerol acyltransferase 2) is a key and rate-limiting enzyme that catalyzes the final step of triglyceride (TG) synthesis. In this study, hybrid tilapia were generated from Nile tilapia (♀) and blue tilapia (♂) crossing. The TG content levels in the liver of these tilapia were measured. The results showed that the TG content was higher in the hybrid tilapia. In addition, protein and mRNA expression levels in the tilapia livers were determined. Higher hepatic mRNA and protein expression of DGAT2 in the hybrid fish was found. A luciferase reporter assay with HEK293T cells revealed that miRNA-19a-5p targeted the 3'UTR of DGAT2, suggesting a direct regulatory mechanism. Using qRT-PCR, we found that DGAT2 mRNA levels had a negative correlation with miRNA-19a-5p expression in Nile tilapia and hybrid. Taken together, these findings provide evidence that miRNA-19a-5p is involved in TG synthesis in the regulation of lipid metabolism in tilapia.
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Mishra DC, Sikka P, Yadav S, Bhati J, Paul SS, Jerome A, Singh I, Nath A, Budhlakoti N, Rao AR, Rai A, Chaturvedi KK. Identification and characterization of trait-specific SNPs using ddRAD sequencing in water buffalo. Genomics 2020; 112:3571-3578. [PMID: 32320820 DOI: 10.1016/j.ygeno.2020.04.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 03/19/2020] [Accepted: 04/17/2020] [Indexed: 12/14/2022]
Abstract
Single Nucleotide Polymorphism (SNP) is one of the important molecular markers widely used in animal breeding program for improvement of any desirable genetic traits. Considering this, the present study was carried out to identify, annotate and analyze the SNPs related to four important traits of buffalo viz. milk volume, age at first calving, post-partum cyclicity and feed conversion efficiency. We identified 246,495, 168,202, 74,136 and 194,747 genome-wide SNPs related to mentioned traits, respectively using ddRAD sequencing technique based on 85 samples of Murrah Buffaloes. Distribution of these SNPs were highest (61.69%) and lowest (1.78%) in intron and exon regions, respectively. Under coding regions, the SNPs for the four traits were further classified as synonymous (4697) and non-synonymous (3827). Moreover, Gene Ontology (GO) terms of identified genes assigned to various traits. These characterized SNPs will enhance the knowledge of cellular mechanism for enhancing productivity of water buffalo through molecular breeding.
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Affiliation(s)
- D C Mishra
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Poonam Sikka
- ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Sunita Yadav
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Jyotika Bhati
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - S S Paul
- ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - A Jerome
- ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Inderjeet Singh
- ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Abhigyan Nath
- ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Neeraj Budhlakoti
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - A R Rao
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Anil Rai
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - K K Chaturvedi
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India.
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