光周期诱导开花在三叶鬼针草三个光周期系中的遗传

Inheritance of photoperiod-induced flowering in three photoperiodic lines of Aeschynomene americana L.

机构信息

Everglades Research and Education Center, University of Florida, Box 8003, 33430, Belle Glade, FL, USA.

出版信息

Theor Appl Genet. 1989 Dec;78(6):825-30. doi: 10.1007/BF00266665.

Abstract

Induction of flowering by photoperiod was studied in the parental, F1, F2, and reciprocal backcross generations of crosses between three photoperiod-responsive Aeschynomene americana L. lines. Generation means appeared additive. Analysis with Mather and Jinks' scaling tests showed little or no epistasis and indicated that an additive-dominance model was adequate. Partitioning components of variation revealed that nearly all variation was additive genetic with dominance and environmental variation negligible. An additive genetic model with two loci, each with two alleles and all alleles having equal net effect, was tested using Power's partitioning method. Results demonstrated that the model fit the data and that there is a major additive genetic system controlling flowering in these crosses, with minor genetic and environmental influences present. Selection for flowering at a desired day length should be feasible.

摘要

通过光周期诱导开花的研究，在三个光周期反应 Aeschynomene americana L. 线之间的杂交的亲本、F1、F2 和回交世代中进行。世代平均值表现出加性。Mather 和 Jinks 的刻度测试分析表明，很少或没有上位性，表明加性-显性模型是足够的。变异的划分成分表明，几乎所有的变异都是加性遗传的，显性和环境变异可以忽略不计。使用 Power 的划分方法，测试了一个具有两个位点的加性遗传模型，每个位点有两个等位基因，所有等位基因的净效应相等。结果表明，该模型符合数据，并且在这些杂交中存在一个主要的加性遗传系统控制着开花，同时存在较小的遗传和环境影响。在所需的日长下选择开花应该是可行的。