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Wagyu is recognized for producing marbled beef with high nutritional value and flavor. Reportedly, Wagyu has been widely used to improve the meat quality of local breeds around the world. However, studies on the genetic mechanism of meat quality in Wagyu at the whole‐genome level are rarely reported. Here, whole‐genome sequencing data of 11 Wagyu and 115 other individuals were used to explore the genomic variations and genes under selection pressure in Wagyu. A total of 31 349 non‐synonymous variants and 53 102 synonymous variants were identified in Wagyu. The population structure analysis showed that Wagyu had the closest genetic relationship with Mishima–Ushi cattle and was apparently separated from other cattle breeds. Then, composite likelihood ratio (CLR), integrated haplotype score, fixation index and cross‐population composite likelihood ratio (XP‐CLR) tests were performed to identify the candidate genes under positive selection in Wagyu. In total, 770 regions containing 312 genes were identified by at least three methods. Among them, 97 regions containing 27 genes were detected by all four methods. We specifically illustrate a list of interesting genes, including LRP2BP, GAA, CACNG6, CXADR, GPCPD1, KLF2, KLF13, SOX5, MYBPC1, SLC25A10, ATP8A1 and MYH15, which are associated with lipid metabolism, fat deposition, muscle development, bone development, feed intake and growth traits in Wagyu. This is the first study to explore the genomic variations and selection signatures of Wagyu at the whole‐genome level. These results will provide significant help to beef cattle improvement and breeding. [ABSTRACT FROM AUTHOR]

Recently, the introduction of specialized commercial breeds such as Boer and Saanen goats has sharply decreased the population size of purebred LUB, so there is an urgent need to assess the present population structure and genetic diversity. The Lubei White (LUB) goat is an indigenous dual-purpose meat and skin breed kept mainly in the Shandong province of China. Assessing the current genetic status of Lubei white goat based on the whole-genome data. [Extracted from the article]