作者：周显臻,姚诗幻,李嘉雯,陈凯玥,于丹
单位：西北农林科技大学林学院 陕西 杨凌 712100
关键词：落叶松-杨栅锈菌,基因复制模式,基因年龄法,全基因组复制,共线性
基金：国家自然科学基金(31870630),西北农林科技大学“大学生创新创业训练计划”项目(S202010712432)
落叶松-杨栅锈菌是一种分布广且危害严重的林木病原真菌。了解基因组内发生的基因复制事件及基因组间的共线性关系,能为最终理解落叶松-杨栅锈菌适应性进化等生物学问题提供帮助。落叶松-杨栅锈菌全基因组水平上基因复制相关研究未见报道,共线性研究报道也较少。本研究利用落叶松-杨栅锈菌全基因组序列分析其基因复制模式。结果表明,落叶松-杨栅锈菌转座复制基因的数目远高于片段复制基因、串联复制基因及相邻复制基因。落叶松-杨栅锈菌基因组内不存在大规模的片段复制,且基因年龄法显示节点同义替换率分布图上没有峰形出现,推断该锈菌未发生全基因组复制。富集分析显示不同类型复制基因富集于不同的功能条目,如串联复制基因富集于碳水化合物的转运和代谢而转座复制基因富集于次生代谢物合成、代谢与分解。共线性分析显示落叶松-杨栅锈菌与松栎柱锈菌及小麦条锈菌的共线性程度均较低,3种锈菌间存在1个共同的共线性区域,该保守区域包含6个基因,其中1个可能编码小分泌蛋白的基因值得关注。"/>template{display:none;}.mag-rich-xref-fn { cursor: pointer;}//长视频$(document).ready(function(){if($("#showLongArticleVideo") && $("#showLongArticleVideo").length && $("#showLongArticleVideo").length>0){mag_ajax_update({ele_id:'showLongArticleVideo',url:mag_currentQikanUrl() + "/CN/article/showLongArticleVideo.do?id="+$("#articleId").val()});}});//可视化图谱$(document).ready(function(){if($("#showArticle_knowledgeMap") && $("#showArticle_knowledgeMap").length && $("#showArticle_knowledgeMap").length>0){jQuery.getJSON("/Jwxb/CN/lexeme/existsCnctstInArticle.do?articleID="+$("#articleId").val(), null, function(json){if(json.result){$("#showArticle_knowledgeMap").show();}});}});$(document).ready(function(){var metaDataStr = $.trim($("#article_metaJson").val());if(metaDataStr!=''){eval("window.metaData="+metaDataStr);}if(window.metaData && (!window.metaData.authorNotesCommon_cn && !window.metaData.authorNotesCorresp_cn && window.metaData.authorNotes_cn)){window.metaData.authorNotesCommon_cn = window.metaData.authorNotes_cn;}if(window.metaData && (!window.metaData.authorNotesCommon_en && !window.metaData.authorNotesCorresp_en && window.metaData.authorNotes_en)){window.metaData.authorNotesCommon_en = window.metaData.authorNotes_en;}var _nlmdtdXml = $("#article_nlmdtdXml").val();var magDir = _nlmdtdXml.replace(/\/[^\/]+$/,'');window.metaData.magDir = magDir;new mag_vue({ el: '#metaVue', //dataUrl: mag_currentQikanUrl() + '/EN/article/getRichHtmlJson.do?articleId='+$("#articleId").val(), data:window.metaData, loading:true, doTextFun:function(text){ return doDataJsonText(text); 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来源：2021年第3期
《菌物学报》期刊编辑部
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