• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >A GENETIC STUDY OF COTTONSEED OIL CONTENT ASSOCIATED WITH GLANDED AND GLANDLESS STRAINS (DIALLELS, COMBINING ABILITY, GOSSYPOL, INHERITANCE, MATERNAL EFFECT).
【24h】

A GENETIC STUDY OF COTTONSEED OIL CONTENT ASSOCIATED WITH GLANDED AND GLANDLESS STRAINS (DIALLELS, COMBINING ABILITY, GOSSYPOL, INHERITANCE, MATERNAL EFFECT).

机译：棉花蛋白含量与不定形和不定形应变（小颗粒，结合能力，古斯波夫，遗传，物质效应）的遗传研究。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Twelve cotton lines with different seed-oil contents, six glanded and six glandless, were crossed in a full diallel mating system. All progenies were evaluated for seed-oil percentage (SO), seed index (SI, mg/seed), and seed-oil index (SOI, mg/seed), to obtain information on the inheritance of these traits.;Data were analyzed according to the procedures of Hayman (1954a, 1954b, 1957, 1958) and Griffing (1956), and by utilizing generation means of individual crosses. Results indicated that maternal effects were not significant for all traits, but reciprocal effects were significant for SI and SOI. Additive effects were the most prevalent in the analyses. However, the analysis of F(,2) data detected significant amounts of epistasis for all traits, indicating that a more complex model than that of Hayman (1954b) is needed to explain gene action in the population used in this study. The genetic analysis by generation means also detected mostly additive effects, but also epistasis of additive type, and to a lesser extent, epistasis of dominant type. The highest additive components were found in the glandless crosses involving parents of high and low oil content. Analysis of gene effects by generation means was, therefore, more adequate to describe gene action for SO, SI, and SOI, than was the Hayman's procedure.;The effect of glandless genotypes on SO was significant and positive. Analysis of segregating F(,2) families for glandless and glanded phenotypes indicated that SO was higher for glandless phenotypes than for glanded ones. However, this observation was firmly established only in crosses involving parents with high oil content. In this regard, the highest glandless oil parent would be an effective source of high oil content in breeding programs.;The experiments were carried out in the 1983 and 1984 seasons, at the Agronomy Field of Texas A&M University, adopting a randomized complete block design with four blocks. However, four intermediate parents for SO, and the reciprocals were omitted in the second year. All statistical analyses were performed considering the genotypes as fixed, and blocks and block interactions as random effects. The F(,2) generations were used from crosses within glanded and within glandless parents in the second year. Moreover, F(,2) families derived from four different crosses among glanded and glandless parents were separated into four phenotypic glanded/glandless classes to verify potential genetic relationships between those four classes and SO.
机译：在完整的二代交配系统中杂交了十二个具有不同籽油含量的棉线，分别是六个去皮和六个去皮。评估所有子代的种子油率（SO），种子指数（SI，mg / seed）和种子油指数（SOI，mg / seed），以获得有关这些性状遗传的信息。根据Hayman（1954a，1954b，1957、1958）和Griffing（1956）的程序，并利用单个杂交的生成方式。结果表明，母体效应并非对所有性状均具有显着性，但对SI和SOI则具有正反作用。在分析中，加性效应最为普遍。然而，对F（，2）数据的分析检测到所有特征的上位性显着增加，表明需要一个比Hayman（1954b）更复杂的模型来解释本研究中所用人群的基因作用。通过世代手段进行的遗传分析也主要检测到累加效应，但也检测到累加类型的上位性，在较小程度上检测到显性类型的上位性。在涉及高含油量和低含油量的母体的无腺杂交中发现了最高的添加剂成分。因此，与Hayman方法相比，通过世代手段进行基因效应分析更能描述SO，SI和SOI的基因作用。无腺基因型对SO的影响是显着且积极的。对无腺和腺体表型分离的F（，2）家族的分析表明，无腺表型的SO高于腺体表型。但是，仅在涉及高含油量父母的杂交中牢固地确立了这一观察结果。在这方面，最高的无腺体油母体将是育种计划中高油含量的有效来源。实验在1983和1984季节在德克萨斯农工大学的农学领域进行，采用了随机完整块设计有四个街区。但是，第二年有四个SO的中间父母，而互惠生则被省略。所有统计分析均以固定的基因型和封闭的相互作用为随机效应进行。 F（，2）代在第二年从有腺和无腺父母的杂交中使用。此外，来自腺体和非腺体父母之间四个不同杂交的F（，2）家族被分为四个表型腺体/非腺体类，以验证这四个类与SO之间的潜在遗传关系。

著录项

  • 作者

    RAMOS, LUIS CARLOS DA SILVA.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Biology Genetics.
  • 学位 Ph.D.
  • 年度 1985
  • 页码 68 p.
  • 总页数 68
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号