Pratama Akbar Adjie, Haq Irshad Ul, Nazir Rashid, Chaib De Mares Maryam, van Elsas Jan Dirk
Department of Microbial Ecology, Microbial Ecology - Groningen Institute for Evolutionary Life Sciences, University of Groningen, Nijenborgh 7, Groningen, 9747 AG The Netherlands.
Department of Environmental Sciences COMSATS Institute of Information Technology, University Road, Abbottabad, 22060 Pakistan.
Stand Genomic Sci. 2017 Dec 18;12:81. doi: 10.1186/s40793-017-0293-8. eCollection 2017.
Here, we report the draft genome sequences of three fungal-interactive 10.1601/nm.27008 strains, denoted BS110, BS007 and BS437. Phylogenetic analyses showed that the three strains belong to clade II of the genus 10.1601/nm.1619, which was recently renamed 10.1601/nm.26956. This novel genus primarily contains environmental species, encompassing non-pathogenic plant- as well as fungal-interactive species. The genome of strain BS007 consists of 11,025,273 bp, whereas those of strains BS110 and BS437 have 11,178,081 and 11,303,071 bp, respectively. Analyses of the three annotated genomes revealed the presence of (1) a large suite of substrate capture systems, and (2) a suite of genetic systems required for adaptation to microenvironments in soil and the mycosphere. Thus, genes encoding traits that potentially confer fungal interactivity were found, such as type 4 pili, type 1, 2, 3, 4 and 6 secretion systems, and biofilm formation (PGA, alginate and ) and glycerol uptake systems. Furthermore, the three genomes also revealed the presence of a highly conserved five-gene cluster that had previously been shown to be upregulated upon contact with fungal hyphae. Moreover, a considerable number of prophage-like and CRISPR spacer sequences was found, next to genetic systems responsible for secondary metabolite production. Overall, the three 10.1601/nm.27008 strains possess the genetic repertoire necessary for adaptation to diverse soil niches, including those influenced by soil fungi.
在此,我们报告了三株与真菌相互作用的10.1601/nm.27008菌株(分别命名为BS110、BS007和BS437)的基因组草图序列。系统发育分析表明,这三株菌株属于10.1601/nm.1619属的进化枝II,该属最近被重新命名为10.1601/nm.26956。这个新属主要包含环境物种,包括非致病性植物以及与真菌相互作用的物种。菌株BS007的基因组由11,025,273个碱基对组成,而菌株BS110和BS437的基因组分别有11,178,081和11,303,071个碱基对。对这三个注释基因组的分析揭示了:(1)大量的底物捕获系统;(2)一套适应土壤和真菌圈微环境所需的遗传系统。因此,发现了编码可能赋予真菌相互作用特性的基因,如4型菌毛、1型、2型、3型、4型和6型分泌系统,以及生物膜形成(PGA、藻酸盐等)和甘油摄取系统。此外,这三个基因组还揭示了一个高度保守的五基因簇的存在,该基因簇先前已被证明在与真菌菌丝接触时会上调。此外,除了负责次生代谢产物产生的遗传系统外,还发现了相当数量的前噬菌体样和CRISPR间隔序列。总体而言,这三株10.1601/nm.27008菌株拥有适应各种土壤生态位(包括受土壤真菌影响的生态位)所需的基因库。