arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.3771q-bio.PE
收藏

追踪物种之间的进化联系

Tracing evolutionary links between species

Mike Steel

摘要:

地球上所有的生命都可以追溯到一个共同的起源,这一观点至少可以追溯到查尔斯·达尔文的《物种起源》。从那时起,生物学家们就试图根据我们今天所能观察到的化石以及存在于不同生物体的基因组和表型中的进化信号来拼凑这棵“生命之树”的各个部分。数学在帮助将遗传数据转化为系统发育(进化)树和网络方面发挥了关键作用。在这里,我将解释遗传学中的一些中心概念和基本结果,它们受益于数学的几个分支,包括组合学,概率和代数。

英文摘要:

The idea that all life on earth traces back to a common beginning dates back at least to Charles Darwin's {\em Origin of Species}. Ever since, biologists have tried to piece together parts of this `tree of life' based on what we can observe today: fossils, and the evolutionary signal that is present in the genomes and phenotypes of different organisms. Mathematics has played a key role in helping transform genetic data into phylogenetic (evolutionary) trees and networks. Here, I will explain some of the central concepts and basic results in phylogenetics, which benefit from several branches of mathematics, including combinatorics, probability and algebra.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑