Genotype-environment interaction and developmental regulation in Arabidopsis thaliana III. Inbred lines; analysis of response to photoperiod
Genotype-environment interaction and developmental regulation in Arabidopsis thaliana III. Inbred lines; analysis of response to photoperiod
复制标题
拟南芥基因型-环境相互作用和发育调控III。
DOI：
10.1038/hdy.1971.49
复制
发表时间：
1971
期刊：
影响因子：
3.8
通讯作者：
J. M. Westerman
中科院分区：
文献类型：
--
作者：
J. M. Westerman
以特定方式控制开花的两个环境变量是日长和温度。在以前的论文中(Westman和Lawrence，1970；Westman，1970)，人们观察到拟南芥自交系对温度的反应在开花时间性状方面是非常不同的。然而，对于所有的特征，很大一部分响应是通过对环境变量的线性回归来解释的。此外，开花时间和叶数的发育调控的主要模式似乎是这样的：性状的表达有利地稳定，而就高度而言，大多数家系表现出不同程度的灵活性。在这篇文章中，我们将通过考虑自交系在以光周期为环境变量时的反应来研究这种行为是否是材料的常规特征。虽然关于拟南芥的光周期行为的一般工作很少，但它是一种临界日长很低的定量长日照植物(Laibach，1943；Gregory和Hussey，1953；Ratcliffe，1961)。以前的研究也证明了开花时间特征和光周期相互作用(Heller，1951；Bartheless，1967)。因此，以光周期为环境变量的发育表型是通过前文中使用的相同七个品系之间的双列杂交进行遗传分析的。
THE two environmental variables which appear most frequently to control floral initiation in a specific manner are daylength and temperature. In previous papers (Westerman and Lawrence, 1970; Westerman, 1970), the response of inbred lines of Arabidopsis thaliana to temperature has been observed to be very diverse when measured in terms of flowering time characters. For all characters, however, a large proportion of the response is accounted for by a linear regression on to the environmental variable. Furthermore, the predominant mode of developmental regulation oi flowering time and leaf number appears to be such that the expression oJ the character is advantageously stabilised, while with respect to height most families manifest varying amounts of flexibility. In this paper we shall investigate whether this behaviour is, a regular feature of the material by considering the response of inbred lines when photoperiod is used as the environmental variable. Although there has been little general work on the photoperiodic behaviour of Arabidopsis, it is known to be a quantitative long-day plant with a very low critical daylength (Laibach, 1943; Gregory and Hussey, 1953; Ratcliffe, 1961). Previous studies have also demonstrated that flowering time characters interact with photoperiod (Harer, 1951; Barthelmess, 1967). The developmental phenotype with reference to photoperiod as the environmental variable has therefore been analysed genetically by means of a diallel cross between the same seven lines used in the previous paper.