薄壳山核桃MADS基因家族的全基因组鉴定及生物信息学分析

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中图分类号：S664.1 文献标识码：A 文章编号：1000-4440（2025）06-1080-15

Abstract：The MADS genesareaclass of importanttranscriptionalregulatory factors，with extensive biological functions.Theyareinvolvedinthegrowth，development，andsignal transductionof multiple species，andtheir biological characteristicshavebeenidentifedinvariousorganisms.Inthisstudy，bioinformaticsmethodswereemployedtoidentifyand analyze the MADS genefamily members in Caryailinoinensis （Wangenh.）K.Koch.Atotalof81MADSgenefamilymemberswereidentified，which wereunevenlydistributedacross16chromosomes.Basedontheresultsof phylogenetictree illinoinensiswerefoundto containalarge numberofcisactingelements，including plant hormone response elements，stress response elements，and light response elements.The study revealed that these cis-acting elements werewidely distributed in the promoter regions of the

MADS genes，indicating that the MADS genes had played an important role inthe adaptation to environmental changes and thegrowthanddevelopmentofCaryaillnoinensis.TheexpresionlevelsofdiferentMADSfamilygenesinCaryaillninensis varied greatlyindiferenttissuesandatdifferenttimes.For example，CiMADS46 hada high expressionlevel inthe stem，CiMADS7hada high expresion level in thefruit，and the expression levelof CiMADS11 decreased over time.The （2号 MADS genes were found to exhibit distinct tissue-specific expresson patterns.It was speculated that the MADS gene family mightplayimportantrolesintheprocessesofflowerformationandfruitdevelopment，andtheymighthaveacertaindegree offunctionaldiversityatdiferentdevelopmental stages.Theresultsofthisstudylaythefoundationforfurtherresearchon thefunctionsand characteristicsof CiMADS genesandprovideareference fortheidentificationand characterizationof MADS gene family members in other species.

Key words：Carya illinoinensis（Wangenh.）K.Koch；MADS gene family；bioinformatics；expression analysis

薄壳山核桃（Caryaillinoinensis），俗称美国山核桃，隶属于胡桃科山核桃属，是一种广泛种植的干果油料树种。（剩余11369字）