A new perspective on functional redundancy and phylogenetic niche conservatism in soil microbial communities
A new perspective on functional redundancy and phylogenetic niche conservatism in soil microbial communities作者机构：Department of Natural Resource SciencesMacdonald Campus of McGill UniversitySte-Anne-de-BellevueQuebec H9X 3V9(Canada)
出 版 物：《Pedosphere》 (土壤圈（英文版）)
年 卷 期：2020年第30卷第1期
页 面：18-24页
核心收录：
主 题：basic function conceptual model core gene environmental factor genetic factor niche overlap rare function soil biodiversity
摘 要：Functional redundancy in soil microbial communities seems to contradict the notion that individual species have distinct metabolic niches in multi-species *** soil microbiota have the metabolic capacity forbasicfunctions(e.g.,respiration and nitrogen and phosphorus cycling),but only a few soil microbiota participate inrarefunctions(e.g.,methanogenesis and mineralization of recalcitrant organic pollutants).The objective of this perspective paper is to use the phylogenetic niche conservatism theory as an explanation for the functional redundancy of soil *** niche conservatism is defined as the tendency for lineages to retain ancestral functional characteristics through evolutionary *** present-day soil microbiota is the result of a community assembly process that started when prokaryotes first appeared on *** billions of years,microbiota have retained a highly conserved set of core genes that control the essential redox and biogeochemical reactions for life on *** genes are passed from microbe to microbe,which contributes to functional redundancy in soil microbiota at the planetary *** assembly of microbial communities during soil formation is consistent with phylogenetic niche *** a specific soil,the heterogeneous matrix provides an infinite number of sets of diverse environmental conditions,i.e.,niches that lead to the divergence of microbial *** phylogenetic niche conservatism theory predicts that two or more microbial species diverging from the same clade will have an overlap in their niches,implying that they are functionally redundant in some of their metabolic *** endogenous genetic factors that constrain the adaptation of individuals and,thus,populations to changing environmental conditions constitute the core process of phylogenetic niche ***,the degree of functional redundancy in a particular soil is proportional to the complexity of the
维普期刊数据库
同方期刊数据库