Candidate Genes, Markers, Signatures of Selection, and Quantitative Trait Loci (QTLs) and Their Association with Economic Traits in Livestock: Genomic Insights and Selection.

This review synthesizes advances in livestock genomics by examining the interplay between candidate genes, molecular markers (MMs), signatures of selection (SSs), and quantitative trait loci (QTLs) in shaping economically vital traits across livestock species. By integrating advances in genomics, bioinformatics, and precision breeding, the study elucidates genetic mechanisms underlying productivity, reproduction, meat quality, milk yield, fibre characteristics, disease resistance, and climate resilience traits pivotal to meeting the projected 70% surge in global animal product demand by 2050. A critical synthesis of 1455 peer-reviewed studies reveals that targeted genetic markers (e.

Evolution of endogenous retroviruses (ERVs) in the Bovinae subfamily.

Endogenous retroviruses (ERVs) are remnants of ancient viral infections that have integrated into host genomes, significantly influencing genome evolution, adaptation, and disease. This study employed a genome-wide screening protocol to analyze 49 genomes, covering 17 species within the Bovinae subfamily, including 25 cattle genomes and 7 buffalo genomes. The identification of ERVs primarily employed RepeatModeler.

The Evolution and Role of Molecular Tools in Measuring Diversity and Genomic Selection in Livestock Populations (Traditional and Up-to-Date Insights): A Comprehensive Exploration.

Distinctive molecular approaches and tools, particularly high-throughput SNP genotyping, have been applied to determine and discover SNPs, potential genes of interest, indicators of evolutionary selection, genetic abnormalities, molecular indicators, and loci associated with quantitative traits (QTLs) in various livestock species. These methods have also been used to obtain whole-genome sequencing (WGS) data, enabling the implementation of genomic selection. Genomic selection allows for selection decisions based on genomic-estimated breeding values (GEBV).

Assessment of hair and cashmere properties and their genetic background of several goat breeds in Southwest China.

The aim of this study was to determine the properties and quality characteristics of hair and cashmere fibres of three goat breeds raised in Southwest China, namely; Dazu black goat (DBG, n = 203; ♂99, ♀104), Inner Mongolia cashmere goat (IMCG, n = 65; 21♂, 44♀) and their first cross (F, n = 79; 39♂, 40♀). Totals of 5219, 2130 and 2981 fibre samples, from the three breeds respectively, were taken prior to shearing at 32.5 ± 01.

Morphological body measurements, body indices, and their genetic background for several Chinese goat breeds.

This field work was conducted to describe the body measurements and the body indices along with the correlations among them for 513 goats organized into the following breeds: Saanen milk goat (B), Black Boer x Dazu black goat (B), Hechuan white goat (B), Dazu black goat (B), Inner Mongolia cashmere goat (B), B x B cross (B), and Bx B cross (B) residents of different Chinese regions but raised in Dazu Black farm, Beibei, Southwest China. Data were collected on adult males and females of similar age (36.50 ± 0.

Evaluation of morphological traits and physiological variables of several Chinese goat breeds and their crosses.

The current study was undertaken to evaluate some morphological traits of the goat breeds raised in Southwest China. The field experimentation and data collection were from 434 animals presenting seven breeds of the Dazu black goat (DBG; n = 203), Saanen milk goat (SMG; n = 50), Black Boer × Dazu black goat (BXC; n = 28), Hechuan white goat (HWG; n = 49), Inner Mongolia Cashmere goat (IMCG; n = 25), IMCG × DBG (F; n = 57) and F × F (F; n = 22). All studied animals were adult and selected to be at the same age (36.

Comparative analysis of IGFBP-3 gene sequence in Egyptian sheep, cattle, and buffalo.

Objective: A total of 205 animals from four Egyptian livestock species; cattle (n = 18), buffaloes (n = 12), sheep (n = 150) and goats (n = 25) were used in this study to detect polymorphism and perform comparative analysis for IGFBP-3 gene using DNA sequencing and (PCR-RFLP).

Results: The amplified fragments were found to be of length 654 bp in sheep, 651 bp in cattle and 655 bp in buffalo. For Falahy goats, PCR was performed to amplify a 316 bp fragment from exon 2 of the IGFBP-3 gene.