GEOGRAPHICAL VARIATION IN PHOTOPERIODIC INDUCTION OF DIAPAUSE IN THE SPIDER-MITE (TETRANYCHUS-URTICAE) - A CAUSAL RELATION BETWEEN CRITICAL NIGHT-LENGTH AND CIRCADIAN PERIOD

被引：35

作者：

VAZNUNES, M

KOVEOS, DS

VEERMAN, A

机构：

[1] Department of Pure and Applied Ecology, Section Population Biology, University of Amsterdam, Amsterdam, Kruislaan 302

来源：

JOURNAL OF BIOLOGICAL RHYTHMS | 1990年 / 5卷 / 01期

关键词：

D O I：

10.1177/074873049000500105

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The photoperiodic response of 10 strains of the two-spotted spider mite (Tetranychus urticae), originating between 40.5° and 60°N in Western and Central Europe, was found to be highly variable. The critical nightlength for photoperiodic induction of diapause was strongly correlated with latitude for the lowland populations and varied from 7.75 hr in the north to 13.25 hr in the south. The length of the circadian period, taken as the peak-to-peak interval in response curves of resonance experiments done with T. urticae, varied between 17.75 and 21.5 hr and appeared weakly correlated with latitude. Only a very weak correlation was observed between critical nightlength and circadian period. These results do not provide evidence in favor of a circadian-based photoperiodic clock in T. urticae. On the other hand, they also do not refute this possibility, as there may be other circadian or noncircadian factors affecting the critical nightlength, which could mask the influence of circadian period. © 1990, Sage Publications. All rights reserved.

引用

页码：47 / 57

页数：11

共 20 条

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