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- 저자 : Sakowski, Tomasz (검색결과 2 건)
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Associations between gene polymorphisms and selected meat traits in cattle - A review
Zalewska, Magdalena,Puppel, Kamila,Sakowski, Tomasz Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.9
Maintaining a high level of beef consumption requires paying attention not only to quantitative traits but also to the quality and dietary properties of meat. Growing consumer demands do not leave producers many options for how animals are selected for breeding and animal keeping. Meat and carcass fatness quality traits, which are influenced by multiple genes, are economically important in beef cattle breeding programs. The recent availability of genome sequencing methods and many previously identified molecular markers offer new opportunities for animal breeding, including the use of molecular information in selection programs. Many gene polymorphisms have thus far been analyzed and evaluated as potential candidates for molecular markers of meat quality traits. Knowledge of these markers can be further applied to breeding programs through marker-assisted selection. In this literature review, we discuss the most promising and well-described candidates and their associations with selected beef production traits.
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Counts and sequences, observations that continue to change ourunderstanding of viruses in nature
K. Eric Wommack,Daniel J. Nasko,Jessica Chopyk,Eric G. Sakowski 한국미생물학회 2015 The journal of microbiology Vol.53 No.3
The discovery of abundant viruses in the oceans and on landhas ushered in a quarter century of groundbreaking advancementsin our understanding of viruses within ecosystems. Two types of observations from environmental samples –direct counts of viral particles and viral metagenomic sequences– have been critical to these discoveries. Accuratedirect counts have established ecosystem-scale trends in theimpacts of viral infection on microbial host populations andhave shown that viral communities within aquatic and soilenvironments respond to both short term and seasonal environmentalchange. Direct counts have been critical for estimatingviral production rate, a measurement essential toquantifying the implications of viral infection for the biogeochemicalcycling of nutrients within ecosystems. Whiledirect counts have defined the magnitude of viral processes;shotgun sequences of environmental viral DNA – viromesequences – have enabled researchers to estimate the diversityand composition of natural viral communities. Virome-enabledstudies have found the virioplankton to contain thousandsof viral genotypes in communities where the mostdominant viral population accounts for a small fraction oftotal abundance followed by a long tail of diverse populations. Detailed examination of long virome sequences hasled to new understanding of genotype-to-phenotype connectionswithin marine viruses and revealed that viruses carrymetabolic genes that are important to maintaining cellularenergy during viral replication. Increased access to long viromesequences will undoubtedly reveal more genetic secretsof viruses and enable us to build a genomics rulebook forpredicting key biological and ecological features of unknownviruses.
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