Inferring Speciation Processes from Patterns of Natural Variation in Microbial Genomes
نویسندگان
چکیده
منابع مشابه
Inferring Speciation Processes from Patterns of Natural Variation in Microbial Genomes
Microbial species concepts have long been the focus of contentious debate, fueled by technological limitations to the genetic resolution of species, by the daunting task of investigating phenotypic variation among individual microscopic organisms, and by a lack of understanding of gene flow in reproductively asexual organisms that are prone to promiscuous horizontal gene transfer. Population ge...
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Q uerying the past is hard. Speciation and extinction processes are on a scale of thousands to millions of years. Thus, they are most often studied by reconstructing the evolutionary past. This past is reconstructed using phylogenetic methods either on the basis of data from living species or by directly examining the fossil record. Robust methods for inferring the evolutionary past purely on t...
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MOTIVATION Inferring species phylogenies with a history of gene losses and duplications is a challenging and an important task in computational biology. This problem can be solved by duplication-loss models in which the primary step is to reconcile a rooted gene tree with a rooted species tree. Most modern methods of phylogenetic reconstruction (from sequences) produce unrooted gene trees. This...
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با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2015
ISSN: 1063-5157,1076-836X
DOI: 10.1093/sysbio/syv050