R. N. F. Kurosawa, A. T. do Amaral Júnior, F. Silva, A. D. Dos Santos, M. Vivas, S. Kamphorst, G. Pena
{"title":"利用Ward-MLM策略对爆米花基因型进行多变量分析:镰刀菌的形态农艺分析和发病率。","authors":"R. N. F. Kurosawa, A. T. do Amaral Júnior, F. Silva, A. D. Dos Santos, M. Vivas, S. Kamphorst, G. Pena","doi":"10.4238/gmr16019528","DOIUrl":null,"url":null,"abstract":"The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information about popcorn breeding programs under a multivariate approach using the Ward-MLM methodology. The objective of this study was thus to estimate the genetic diversity among 37 genotypes of popcorn aiming to identify divergent groups associated with morpho-agronomic traits and traits related to resistance to Fusarium spp. To this end, 7 qualitative and 17 quantitative variables were analyzed. The experiment was conducted in 2014, at Universidade Estadual do Norte Fluminense, located in Campos dos Goytacazes, RJ, Brazil. The Ward-MLM strategy allowed the identification of four groups as follows: Group I with 10 genotypes, Group II with 11 genotypes, Group III with 9 genotypes, and Group IV with 7 genotypes. Group IV was distant in relation to the other groups, while groups I, II, and III were near. The crosses between genotypes from the other groups with those of group IV allow an exploitation of heterosis. The Ward-MLM strategy provided an appropriate grouping of genotypes; ear weight, ear diameter, and grain yield were the traits that most contributed to the analysis of genetic diversity.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Multivariate approach in popcorn genotypes using the Ward-MLM strategy: morpho-agronomic analysis and incidence of Fusarium spp.\",\"authors\":\"R. N. F. Kurosawa, A. T. do Amaral Júnior, F. Silva, A. D. Dos Santos, M. Vivas, S. Kamphorst, G. Pena\",\"doi\":\"10.4238/gmr16019528\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information about popcorn breeding programs under a multivariate approach using the Ward-MLM methodology. The objective of this study was thus to estimate the genetic diversity among 37 genotypes of popcorn aiming to identify divergent groups associated with morpho-agronomic traits and traits related to resistance to Fusarium spp. To this end, 7 qualitative and 17 quantitative variables were analyzed. The experiment was conducted in 2014, at Universidade Estadual do Norte Fluminense, located in Campos dos Goytacazes, RJ, Brazil. The Ward-MLM strategy allowed the identification of four groups as follows: Group I with 10 genotypes, Group II with 11 genotypes, Group III with 9 genotypes, and Group IV with 7 genotypes. Group IV was distant in relation to the other groups, while groups I, II, and III were near. The crosses between genotypes from the other groups with those of group IV allow an exploitation of heterosis. The Ward-MLM strategy provided an appropriate grouping of genotypes; ear weight, ear diameter, and grain yield were the traits that most contributed to the analysis of genetic diversity.\",\"PeriodicalId\":189314,\"journal\":{\"name\":\"Genetics and molecular research : GMR\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-02-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Genetics and molecular research : GMR\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4238/gmr16019528\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Genetics and molecular research : GMR","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4238/gmr16019528","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
摘要
多变量分析是估计种质间遗传变异的有效工具。在育种计划中,Ward-Modified Location Model (MLM)多元方法是一种同时使用定量和定性变量来量化变异的有效策略。本研究是在利用Ward-MLM方法的多变量方法下对爆米花育种计划缺乏信息的情况下提出的。本研究通过对7个定性变量和17个定量变量的分析,对37个玉米基因型的遗传多样性进行分析,以确定与形态农艺性状和抗镰刀菌相关性状相关的不同群体。该实验于2014年在巴西RJ州Campos dos Goytacazes的universsidade Estadual do Norte Fluminense进行。Ward-MLM策略允许鉴定以下四组:1组10个基因型,2组11个基因型,3组9个基因型,4组7个基因型。类群IV与其他类群的距离较远,而类群I、II和III的距离较近。其他类群的基因型与第四类群的基因型杂交可以利用杂种优势。Ward-MLM策略提供了一个合适的基因型分组;穗重、穗径和籽粒产量是对遗传多样性分析贡献最大的性状。
Multivariate approach in popcorn genotypes using the Ward-MLM strategy: morpho-agronomic analysis and incidence of Fusarium spp.
The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information about popcorn breeding programs under a multivariate approach using the Ward-MLM methodology. The objective of this study was thus to estimate the genetic diversity among 37 genotypes of popcorn aiming to identify divergent groups associated with morpho-agronomic traits and traits related to resistance to Fusarium spp. To this end, 7 qualitative and 17 quantitative variables were analyzed. The experiment was conducted in 2014, at Universidade Estadual do Norte Fluminense, located in Campos dos Goytacazes, RJ, Brazil. The Ward-MLM strategy allowed the identification of four groups as follows: Group I with 10 genotypes, Group II with 11 genotypes, Group III with 9 genotypes, and Group IV with 7 genotypes. Group IV was distant in relation to the other groups, while groups I, II, and III were near. The crosses between genotypes from the other groups with those of group IV allow an exploitation of heterosis. The Ward-MLM strategy provided an appropriate grouping of genotypes; ear weight, ear diameter, and grain yield were the traits that most contributed to the analysis of genetic diversity.