自然环境中T4型噬菌体g23基因多样性研究进展

Genetic diversity of major capsid genes (g23) of T4-type bacteriophages in natural environments - A review

摘要:

摘要：过去的20多年，伴随着分子生物学技术在环境微生物研究中的应用，环境中细菌和真菌群落基因多样性及与其生存环境间的关系逐渐被揭示，但对于地球上广泛存在且数量巨大的生命体-噬菌体基因多样性研究还很少。本文以编码T4型噬菌体主要壳蛋白基因g23为目标，综述了近年来T4型噬菌体在海洋、湖泊和稻田中基因多样性的研究进展。研究结果表明T4型噬菌体g23基因分布与其生存环境关系很大，许多g23基因按获取环境不同划分为几个新类群。同时文中也指出了针对环境中T4型噬菌体g23基因研究应该注意的几点问题及未来的研究发展趋势。

Abstract:

Abstract: During the past two decades, the genetic diversities of bacterial and fungal communities and their relationship with the inhabited environments were intensively studied with the development of molecular biological techniques. However, although bacteriophages are ubiquitous and more abundant than their hosts in biosphere, their diversity is still little known. In this paper, we targeted the major capsid genes (g23) of T4-type bacteriophages and reviewed the recent progress on their genetic diversity. The distribution of g23 of T4-type bacteriophages was distinctly different among natural environments of marines, lakes and paddy fields, and the majority of g23 were grouped into several novel clusters according to their obtained environments. In addition, several research tips and future research tendencies for the study of environmental g23 were also addressed.