A common problem in molecular comparative geno- mics is the identification of genes that are under positive, adaptive selection [1]. Such genes are likely to be crucial for speciation, species differentiation, and func- tional specialization. However, discerning the difference between positive selection and relaxation of func- tional constraint can be difficult using current methods. Both processes generally increase the rate of ami- no acid change relative to synonymous changes within coding regions, and unless the amino acid rate is over- whelmingly high across an entire gene, the signature of positive selection can be obscured [2]. Some methodologies do not explicitly determine the difference be- tween a relaxation of functional constraint and positive selection, leaving researchers to determine via other means whether the trajectory of a gene has been specialization or creation of a new function, or removal from the genome via a process of degeneration.
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机译:The method for reducing intrinsic shaft voltage by suitable selection of pole-arc coefficient in fractional slot permanent magnet synchronous machines
机译:探究国中补校英文科教学策略 ― 应用折衷式教学法于课堂之行动研究 =An Exploration of English Teaching Strategy at Supplementary Junior High School: Action Research on Applying the Eclectic Method to English Classes
机译:Computer-readable medium, communication terminal, and method for making appropriate selection between promptly receiving communication signal and reducing power consumption
机译:Computer-readable medium, communication terminal, and method for making appropriate selection between promptly receiving communication signal and reducing power consumption