农业研究与应用
農業研究與應用
농업연구여응용
GUANGXI TROPICAL AGRICULTURE
2012年
4期
28-33
,共6页
链格孢属%匍柄霉属%系统发育树
鏈格孢屬%匍柄黴屬%繫統髮育樹
련격포속%포병매속%계통발육수
A lternaria%Stemphylium%phylogenetictree
分析了41个链格孢属（Alternaria）种和2个匍柄霉属（Stemphylium）种的5．8SrD—NA及ITS序列，并构建了系统发育树。对该系统发育树的分析表明，链格孢属种间分类比较混乱；某些种与匍柄霉属个别种的亲缘关系非常接近。链格孢属种间形态差异大的，可以根据序列分析加以区分，而形态差异小的则不能区分。
分析瞭41箇鏈格孢屬（Alternaria）種和2箇匍柄黴屬（Stemphylium）種的5．8SrD—NA及ITS序列，併構建瞭繫統髮育樹。對該繫統髮育樹的分析錶明，鏈格孢屬種間分類比較混亂；某些種與匍柄黴屬箇彆種的親緣關繫非常接近。鏈格孢屬種間形態差異大的，可以根據序列分析加以區分，而形態差異小的則不能區分。
분석료41개련격포속（Alternaria）충화2개포병매속（Stemphylium）충적5．8SrD—NA급ITS서렬，병구건료계통발육수。대해계통발육수적분석표명，련격포속충간분류비교혼란；모사충여포병매속개별충적친연관계비상접근。련격포속충간형태차이대적，가이근거서렬분석가이구분，이형태차이소적칙불능구분。
The 5.8SrDNA and ITS sequences of 41 species of Alternaria and 2 species of Stemphylium are analyzed, and the phylogenetic tree has been made. The analysis results indicated that the taxonomy among species of Alternaria is chaotic, the phylogenetic relationship of some species is very close to Stemphylium. The species those have great morphological differences can be distinguished according to sequence analysis, but sequence analysis can not distinguish the species those have little morlahological differences.
