Why the study?
The development of the four stomachs of yak is closely related to health and performance, but the underlying molecular mechanisms are largely unknown.
Population
Yaks across five growth time points [0 day, 20 days, 60 days, 15 months and 3 years (adult)]
Comparison
mRNA expression across rumen, reticulum, omasum, and abomasum across 5 developmental stages
Design
Transcriptome profiling study
Key result
Transcriptome profiling of the four stomach compartments in yaks revealed distinct spatiotemporal mRNA expression patterns during the transition from pre-ruminant to ruminant.
Authors
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Hypothesis-generating for yak rumen ontogeny; extends transcriptomic mapping of ruminant transition but requires validation before application.
Liu et al. (2023) studied Healthy yaks (developmental transition) (n=15). Developmental stage (age) vs. 0 days of age (baseline) was evaluated on Differentially expressed mRNAs (DEmRNAs) and gene co-expression networks across developmental stages. Transcriptome profiling of the four stomach compartments in yaks revealed distinct spatiotemporal mRNA expression patterns during the transition from pre-ruminant to ruminant.
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