scholarly journals Molecular Basis of Natural Variation in Photoperiodic Flowering Responses

2019 ◽  
Vol 50 (1) ◽  
pp. 90-101.e3 ◽  
Author(s):  
Shengjie Bao ◽  
Changmei Hua ◽  
Gengqing Huang ◽  
Peng Cheng ◽  
Ximing Gong ◽  
...  
Keyword(s):  
Molecular Basis ◽  
Natural Variation ◽  
Photoperiodic Flowering

scholarly journals An ant–plant mutualism through the lens of cGMP-dependent kinase genes

2017 ◽  
Vol 284 (1862) ◽  
pp. 20170896 ◽  
Author(s):  
Pierre-Jean G. Malé ◽  
Kyle M. Turner ◽  
Manjima Doha ◽  
Ina Anreiter ◽  
Aaron M. Allen ◽  
...  
Keyword(s):  
Gene Expression ◽  
Molecular Basis ◽  
Significant Interaction ◽  
Natural Variation ◽  
Foraging Behaviour ◽  
Dependent Protein Kinase ◽  
Ant Colonies ◽  
Cgmp Dependent Protein Kinase ◽  
Dependent Protein ◽  
Behaviour Changes

In plant–animal mutualisms, how an animal forages often determines how much benefit its plant partner receives. In many animals, foraging behaviour changes in response to foraging gene expression or activation of the cGMP-dependent protein kinase (PKG) that foraging encodes. Here, we show that this highly conserved molecular mechanism affects the outcome of a plant–animal mutualism. We studied the two PKG genes of Allomerus octoarticulatus, an Amazonian ant that defends the ant–plant Cordia nodosa against herbivores. Some ant colonies are better ‘bodyguards’ than others. Working in the field in Peru, we found that colonies fed with a PKG activator recruited more workers to attack herbivores than control colonies. This resulted in less herbivore damage. PKG gene expression in ant workers correlated with whether an ant colony discovered an herbivore and how much damage herbivores inflicted on leaves in a complex way; natural variation in expression levels of the two genes had significant interaction effects on ant behaviour and herbivory. Our results suggest a molecular basis for ant protection of plants in this mutualism.

scholarly journals Natural variation and CRISPR/Cas9‐mediated mutation in GmPRR37 affect photoperiodic flowering and contribute to regional adaptation of soybean

2020 ◽  
Vol 18 (9) ◽  
pp. 1869-1881 ◽  
Author(s):  
Liwei Wang ◽  
Shi Sun ◽  
Tingting Wu ◽  
Luping Liu ◽  
Xuegang Sun ◽  
...  
Keyword(s):  
Natural Variation ◽  
Photoperiodic Flowering ◽  
Regional Adaptation

scholarly journals Genetic and Transcriptomic Analysis Reveal the Molecular Basis of Photoperiod-Regulated Flowering in Xishuangbanna Cucumber (Cucumis sativus L. var. xishuangbannesis Qi et Yuan)

Genes ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 1064
Author(s):  
Zhen Tian ◽  
Molly Jahn ◽  
Xiaodong Qin ◽  
Hesbon Ochieng Obel ◽  
Fan Yang ◽  
...  
Keyword(s):  
Cucumis Sativus ◽  
Molecular Basis ◽  
Agronomic Traits ◽  
Major Effect ◽  
Transcriptomic Analysis ◽  
Sequencing Data ◽  
Cucumis Sativus L ◽  
Carbohydrate Storage ◽  
Photoperiodic Flowering ◽  
Photoperiod Sensitive

Xishuangbanna (XIS) cucumber (Cucumis sativus L. var. xishuangbannesis Qi et Yuan), is a botanical variety of cucumber cultivars native to southwest China that possesses excellent agronomic traits for cucumber improvement. However, breeding utilization of XIS cucumber is limited due to the current poor understanding of its photoperiod-sensitive flowering characteristics. In this study, genetic and transcriptomic analysis were conducted to reveal the molecular basis of photoperiod-regulated flowering in XIS cucumber. A major-effect QTL locus DFF1.1 was identified that controls the days to first flowering (DFF) of XIS cucumbers with a span of 1.38 Mb. Whole-genome re-sequencing data of 9 cucumber varieties with different flowering characteristics in response to photoperiod suggested that CsaNFYA1 was the candidate gene of DFF1.1, which harbored a single non-synonymous mutation in its fifth exon. Transcriptomic analysis revealed the positive roles of auxin and ethylene in accelerating flowering under short-day (SD) light-dark cycles when compared with equal-day/night treatment. Carbohydrate storage and high expression levels of related genes were important reasons explaining early flowering of XIS cucumber under SD conditions. By combining with the RNA-Seq data, the co-expression network suggested that CsaNFYA1 integrated multiple types of genes to regulate the flowering of XIS cucumber. Our findings explain the internal regulatory mechanisms of a photoperiodic flowering pathway. These findings may guide the use of photoperiod shifts to promote flowering of photoperiod-sensitive crops.

scholarly journals Natural Variation in Hd17, a Homolog of Arabidopsis ELF3 That is Involved in Rice Photoperiodic Flowering

2012 ◽  
Vol 53 (4) ◽  
pp. 709-716 ◽  
Author(s):  
Kazuki Matsubara ◽  
Eri Ogiso-Tanaka ◽  
Kiyosumi Hori ◽  
Kaworu Ebana ◽  
Tsuyu Ando ◽  
...  
Keyword(s):  
Natural Variation ◽  
Photoperiodic Flowering

scholarly journals Positional cloning and characterization reveal the molecular basis for soybean maturity locus E1 that regulates photoperiodic flowering

2012 ◽  
Vol 109 (32) ◽  
pp. E2155-E2164 ◽  
Author(s):  
Z. Xia ◽  
S. Watanabe ◽  
T. Yamada ◽  
Y. Tsubokura ◽  
H. Nakashima ◽  
...  
Keyword(s):  
Molecular Basis ◽  
Positional Cloning ◽  
Photoperiodic Flowering

Renilla Bioluminescence: A Morphologic Approach to the Location of Photocytes

1974 ◽  
Vol 32 ◽  
pp. 208-209
Author(s):  
Ben O. Spurlock ◽  
Milton J. Cormier
Keyword(s):  
Excited State ◽  
Ground State ◽  
Molecular Basis ◽  
Light Emission ◽  
Chemical Basis ◽  
Electronic Excited State ◽  
Colonial Form ◽  
The Common ◽  
Eighteenth And Nineteenth Centuries ◽  
Catalyzed Oxidation

The phenomenon of bioluminescence has fascinated layman and scientist alike for many centuries. During the eighteenth and nineteenth centuries a number of observations were reported on the physiology of bioluminescence in Renilla, the common sea pansy. More recently biochemists have directed their attention to the molecular basis of luminosity in this colonial form. These studies have centered primarily on defining the chemical basis for bioluminescence and its control. It is now established that bioluminescence in Renilla arises due to the luciferase-catalyzed oxidation of luciferin. This results in the creation of a product (oxyluciferin) in an electronic excited state. The transition of oxyluciferin from its excited state to the ground state leads to light emission.

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