RESULTS: Tukey\'s transformed inverse Simpson indices indicated that high muscle yield genetic line (ARS-FY-H) samples have higher microbial diversity compared to those of the low muscle yield genetic line (ARS-FY-L) (LMM, χ2(1) =14.11, p < 0.05). The fecal samples showed statistically distinct structure in microbial assemblages between the genetic lines (F1,36 = 4.7, p < 0.05, R2 = 11.9%). Functional profiling of bacterial operational taxonomic units predicted characteristic functional capabilities of the microbial communities in the high (ARS-FY-H) and low (ARS-FY-L) muscle yield genetic line samples.
CONCLUSIONS: The significant differences of the microbial assemblages between high (ARS-FY-H) and low (ARS-FY-L) muscle yield genetic lines indicate a possible effect of genetic selection on the microbial diversity of the host. The functional composition of taxa demonstrates a correlation between bacteria and improving the muscle accretion in the host, probably, by producing various metabolites and enzymes that might aid in digestion. Further research is required to elucidate the mechanisms involved in shaping the microbial community through host genetic selection.
结果:Tukey变换的逆辛普森指数表明,与低肌肉产量遗传系(ARS-FY-L)相比,高肌肉产量遗传系(ARS-FY-H)样品具有更高的微生物多样性(LMM,χ2(1)=14.11,P<0.05。粪便样品在遗传系之间的微生物组合中显示出统计学上不同的结构(F1,36=4.7,p<0.05,R2=11.9%)。细菌操作分类单元的功能分析预测了高(ARS-FY-H)和低(ARS-FY-L)肌肉产量遗传系样品中微生物群落的特征功能能力。
结论:高(ARS-FY-H)和低(ARS-FY-L)肌肉产量遗传系之间微生物组合的显着差异表明遗传选择可能对宿主的微生物多样性产生影响。类群的功能组成证明了细菌之间的相关性,并改善了宿主中的肌肉增生,可能,通过产生可能有助于消化的各种代谢物和酶。需要进一步的研究来阐明通过宿主遗传选择形成微生物群落的机制。