A Panel Analysis on the Locality of Paddy Rice Yield’s Response to Temperature Conditions: The Case of South Korean Municipalities

2020 ◽  
Vol 11 (6-1) ◽  
pp. 597-607
Author(s):  
Seung Min Kim ◽  
Jeong Ha Hwang ◽  
Ji Wan Han ◽  
Kwansoo Kim
Keyword(s):  
Paddy Rice ◽  
Panel Analysis ◽  
South Korean ◽  
Temperature Conditions ◽  
Response To Temperature

scholarly journals Maternal effects influence temperature-dependent offspring survival in Drosophila melanogaster

2018 ◽  
Author(s):  
Snigdha Mohan ◽  
Ton G.G. Groothuis ◽  
Chris Vinke ◽  
Jean-Christophe Billeter
Keyword(s):  
Drosophila Melanogaster ◽  
Maternal Effects ◽  
Model Organism ◽  
Small Contribution ◽  
Adult Size ◽  
Temperature Dependent ◽  
Temperature Conditions ◽  
Relative Contribution ◽  
Intrinsic Plasticity ◽  
Response To Temperature

AbstractMothers may modulate the phenotype of their offspring by affecting their development based on her own environment. In changing environments, these maternal effects are thought to adjust offspring physiology and development and thus produce offspring better prepared to the environment experienced by the mother. However, evidence for this is scarce. Here we test the consequences of a match or mismatch between mother and offspring temperature conditions on growth, adult morphology and reproduction into the grandchildren generation in the fruit fly Drosophila melanogaster. This experimental design tests the relative contribution of maternal effects and offspring intrinsic plasticity to the phenotypic response to temperature conditions. We manipulated maternal temperature conditions by exposing mothers to either 18°C or 29°C conditions. Their eggs developed at a temperature that was either matched or mismatched with the maternal one. Survival from egg to adult was higher when the maternal and offspring environments matched, showing maternal effects affecting a trait that is a close proxy for fitness. However developmental speed, adult size and fecundity responded to temperature mostly through offspring phenotypic plasticity and maternal effects only had a small contribution. The results provide experimental evidence for maternal effects in influencing a potentially adaptive offspring response to temperature in the model organism Drosophila melanogaster. These effects appear to modulate early embryonic phenotypes such as survival, more than the adult phenotypes of the offspring.

A scanning electron microscopic study on the influence of temperature on the expression of cytoplasmic male sterility in Brassica napus

1987 ◽  
Vol 65 (5) ◽  
pp. 807-814 ◽  
Author(s):  
P. L. Polowick ◽  
V. K. Sawhney
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Intermediate Temperature ◽  
Electron Microscopic ◽  
Floral Organs ◽  
Temperature Conditions ◽  
Cms Line ◽  
Influence Of Temperature On ◽  
Response To Temperature ◽  
Type 3

The stamens of the ogu CMS line of B. napus L. exhibited different patterns of differentiation in response to temperature but were not fertile under any conditions. Three types of CMS stamens were recognized. Type 1 stamens had a distinct anther and filament and, in some cases, microspores were observed. These stamens were found most frequently under a high temperature regime (28:23 °C, light:dark). Type 2 stamens bore features of both stamens and carpels and were most common under intermediate temperature conditions (23:18 °C, light:dark). Type 3 stamens were carpelloid bearing a stigmatic surface and external ovules, lacked a filament, and were predominant under low temperature conditions (18:15 °C, light:dark). Normal stamens retained the same morphology under all temperature conditions. The sizes of the floral organs of normal and CMS flowers were also influenced by temperatures. Sepals, petals, and stamens were longer under low temperature conditions than intermediate and under intermediate temperature conditions than high temperature conditions. The floral organs of normal plants were generally larger than those of the CMS line.

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