本文主要研究内容
作者周晓凤（2019）在《基于果实糖酸分析的枣种质资源遗传多样性研究》一文中研究指出：糖酸是决定枣果实品质的重要物质。研究果实中糖酸组分含量及其遗传多样性,对于丰富种质资源具有重要意义。本试验以新疆南疆阿拉尔地区塔里木大学枣种质资源为试材,采用高效液相色谱法对脆熟期枣果实内糖酸组分及其含量的进行了检测和分析,研究了枣种质资源果实中糖酸积累类型及其相关关系;并分析了枣种质资源及实生后代群体果实糖酸含量组分含量和组成的特点及遗传多样性,主要研究结果如下:(1)枣种质资源果实中糖的主要组分为蔗糖、葡萄糖、果糖,可将枣种质资源果实积累类型分为三种:蔗糖积累型(蔗糖占总糖含量的55%以上),还原糖积累型(还原糖占总糖含量的55%以上,中间类型(蔗糖或还原糖含量介于上述两者之间)。枣种质资源果实中酸组分含量依次为苹果酸>奎宁酸>柠檬酸>酒石酸>草酸>琥珀酸>富马酸,84%的供试枣种质资源果实中未检测到琥珀酸与富马酸。根据果实中苹果酸与奎宁酸含量的比值,将枣种质资源果实酸积累类型分为苹果酸型(苹果酸与奎宁酸含量的比值大于等于1.237)、奎宁酸型(苹果酸与奎宁酸含量的比值小于等于0.801)和中间型(苹果酸与奎宁酸含量的比值介于上述两者之间)。(2)枣种质资源果实中,果糖、葡萄糖、蔗糖、酒石酸、奎宁酸、苹果酸和Vc含量均属于正态分布,草酸、柠檬酸不符合正态分布。果实中葡萄糖含量的变异系数最大为38.666%,蔗糖含量的变异系数最小为31.099%,从遗传多样性指数来看,糖组分含量多样性指数变动范围为4.840-4.864,其中蔗糖的多样性指数最高。果实酸组分中柠檬酸含量的变异幅度最大,其变异系数为79.337%,苹果酸含量的变异幅度最小,其变异系数为36.967%。从遗传多样性指数来看,多样性指数变动范围为4.614-4.846,其中苹果酸含量的多样性指数最高。(3)枣实生后代果实中,除苹果酸外,其余糖酸组分含量均呈正态分布。实生后代果实中糖酸组分含量的变异系数排序为柠檬酸>酒石酸>草酸>苹果酸>葡萄糖>果糖>奎宁酸>Vc>蔗糖。不同枣品种实生群体间,乳脆蜜后代的糖组分变异幅度较大,长鸡心后代的酸组分变异程度较大,乐陵无核实生后代群体果实中Vc含量遗传多样性较丰富。不同枣品种实生群体资源平均遗传多样性指数由大向小排行依次是长鸡心>乳脆蜜>金丝小枣>观音枣>乐陵无核。(4)枣种质资源果实中各糖组分之间表现极显著的正相关,还原糖与蔗糖呈极显著的负相关。草酸、酒石酸、奎宁酸、苹果酸、琥珀酸等五个酸组分之间均呈极显著正相关。5个后代群体枣果实中葡萄糖与果糖均呈极显著的正相关。乐陵无核后代群体果实中苹果酸、Vc与柠檬酸之间均呈极显著负相关。(5)聚类结果显示,根据糖酸组分及含量可将枣种质资源分为5类,可将5个枣品种实生后代分为4类,且同一类的枣种质资源间存在着共同的糖积累特征或酸积累特征。
Abstract
tang suan shi jue ding zao guo shi pin zhi de chong yao wu zhi 。yan jiu guo shi zhong tang suan zu fen han liang ji ji wei chuan duo yang xing ,dui yu feng fu chong zhi zi yuan ju you chong yao yi yi 。ben shi yan yi xin jiang na jiang a la er de ou da li mu da xue zao chong zhi zi yuan wei shi cai ,cai yong gao xiao ye xiang se pu fa dui cui shou ji zao guo shi nei tang suan zu fen ji ji han liang de jin hang le jian ce he fen xi ,yan jiu le zao chong zhi zi yuan guo shi zhong tang suan ji lei lei xing ji ji xiang guan guan ji ;bing fen xi le zao chong zhi zi yuan ji shi sheng hou dai qun ti guo shi tang suan han liang zu fen han liang he zu cheng de te dian ji wei chuan duo yang xing ,zhu yao yan jiu jie guo ru xia :(1)zao chong zhi zi yuan guo shi zhong tang de zhu yao zu fen wei zhe tang 、pu tao tang 、guo tang ,ke jiang zao chong zhi zi yuan guo shi ji lei lei xing fen wei san chong :zhe tang ji lei xing (zhe tang zhan zong tang han liang de 55%yi shang ),hai yuan tang ji lei xing (hai yuan tang zhan zong tang han liang de 55%yi shang ,zhong jian lei xing (zhe tang huo hai yuan tang han liang jie yu shang shu liang zhe zhi jian )。zao chong zhi zi yuan guo shi zhong suan zu fen han liang yi ci wei ping guo suan >kui ning suan >ning meng suan >jiu dan suan >cao suan >hu po suan >fu ma suan ,84%de gong shi zao chong zhi zi yuan guo shi zhong wei jian ce dao hu po suan yu fu ma suan 。gen ju guo shi zhong ping guo suan yu kui ning suan han liang de bi zhi ,jiang zao chong zhi zi yuan guo shi suan ji lei lei xing fen wei ping guo suan xing (ping guo suan yu kui ning suan han liang de bi zhi da yu deng yu 1.237)、kui ning suan xing (ping guo suan yu kui ning suan han liang de bi zhi xiao yu deng yu 0.801)he zhong jian xing (ping guo suan yu kui ning suan han liang de bi zhi jie yu shang shu liang zhe zhi jian )。(2)zao chong zhi zi yuan guo shi zhong ,guo tang 、pu tao tang 、zhe tang 、jiu dan suan 、kui ning suan 、ping guo suan he Vchan liang jun shu yu zheng tai fen bu ,cao suan 、ning meng suan bu fu ge zheng tai fen bu 。guo shi zhong pu tao tang han liang de bian yi ji shu zui da wei 38.666%,zhe tang han liang de bian yi ji shu zui xiao wei 31.099%,cong wei chuan duo yang xing zhi shu lai kan ,tang zu fen han liang duo yang xing zhi shu bian dong fan wei wei 4.840-4.864,ji zhong zhe tang de duo yang xing zhi shu zui gao 。guo shi suan zu fen zhong ning meng suan han liang de bian yi fu du zui da ,ji bian yi ji shu wei 79.337%,ping guo suan han liang de bian yi fu du zui xiao ,ji bian yi ji shu wei 36.967%。cong wei chuan duo yang xing zhi shu lai kan ,duo yang xing zhi shu bian dong fan wei wei 4.614-4.846,ji zhong ping guo suan han liang de duo yang xing zhi shu zui gao 。(3)zao shi sheng hou dai guo shi zhong ,chu ping guo suan wai ,ji yu tang suan zu fen han liang jun cheng zheng tai fen bu 。shi sheng hou dai guo shi zhong tang suan zu fen han liang de bian yi ji shu pai xu wei ning meng suan >jiu dan suan >cao suan >ping guo suan >pu tao tang >guo tang >kui ning suan >Vc>zhe tang 。bu tong zao pin chong shi sheng qun ti jian ,ru cui mi hou dai de tang zu fen bian yi fu du jiao da ,chang ji xin hou dai de suan zu fen bian yi cheng du jiao da ,le ling mo he shi sheng hou dai qun ti guo shi zhong Vchan liang wei chuan duo yang xing jiao feng fu 。bu tong zao pin chong shi sheng qun ti zi yuan ping jun wei chuan duo yang xing zhi shu you da xiang xiao pai hang yi ci shi chang ji xin >ru cui mi >jin si xiao zao >guan yin zao >le ling mo he 。(4)zao chong zhi zi yuan guo shi zhong ge tang zu fen zhi jian biao xian ji xian zhe de zheng xiang guan ,hai yuan tang yu zhe tang cheng ji xian zhe de fu xiang guan 。cao suan 、jiu dan suan 、kui ning suan 、ping guo suan 、hu po suan deng wu ge suan zu fen zhi jian jun cheng ji xian zhe zheng xiang guan 。5ge hou dai qun ti zao guo shi zhong pu tao tang yu guo tang jun cheng ji xian zhe de zheng xiang guan 。le ling mo he hou dai qun ti guo shi zhong ping guo suan 、Vcyu ning meng suan zhi jian jun cheng ji xian zhe fu xiang guan 。(5)ju lei jie guo xian shi ,gen ju tang suan zu fen ji han liang ke jiang zao chong zhi zi yuan fen wei 5lei ,ke jiang 5ge zao pin chong shi sheng hou dai fen wei 4lei ,ju tong yi lei de zao chong zhi zi yuan jian cun zai zhao gong tong de tang ji lei te zheng huo suan ji lei te zheng 。
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论文作者分别是来自塔里木大学的周晓凤，发表于刊物塔里木大学2019-06-18论文，是一篇关于种质资源论文,遗传多样性论文,塔里木大学2019-06-18论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自塔里木大学2019-06-18论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：种质资源论文; 遗传多样性论文; 塔里木大学2019-06-18论文;