Novel opsin gene variation in large-bodied, diurnal lemurs

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Novel opsin gene variation in large-bodied, diurnal lemurs.

Some primate populations include both trichromatic and dichromatic (red-green colour blind) individuals due to allelic variation at the X-linked opsin locus. This polymorphic trichromacy is well described in day-active New World monkeys. Less is known about colour vision in Malagasy lemurs, but, unlike New World monkeys, only some day-active lemurs are polymorphic, while others are dichromatic....

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The diurnal fluctuation of nitrate concentration in the foliage of three parsley subspecies (plain-leafed, curly-leafed and turnip rooted parsley) cultivated in the spring and autumn of two consecutive years was examined. Nitrogen was applied at 30 (Control), 75, 150, 300 mg kg-1 in both years, but with the addition of 450 mg kg-1 in year 2. Harvest was carried out at 08:30, 12:30 and 17:30 on ...

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Diurnal variation in asthma.

It has been known for many hundreds of years that asthma is worse at night. Sir John Floyer in his classic 'Treatise of the Asthma' (1698) wrote: 'I have observed the fit always to happen after Sleep in the Night when Nerves are filled with windy Spirits, and the heat of the bed has rarified the Spirits and Humours'. l Although these exacerbations are a well established clinical phenomenon, the...

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Diurnal Variation of Hepatic Antioxidant Gene Expression in Mice

BACKGROUND This study was aimed to examine circadian variations of hepatic antioxidant components, including the Nrf2- pathway, the glutathione (GSH) system, antioxidant enzymes and metallothionein in mouse liver. METHODS AND RESULTS Adult mice were housed in light- and temperature-controlled facilities for 2 weeks, and livers were collected every 4 h during the 24 h period. Total RNA was iso...

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Hybridization in large-bodied New World primates.

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ژورنال

عنوان ژورنال: Biology Letters

سال: 2017

ISSN: 1744-9561,1744-957X

DOI: 10.1098/rsbl.2017.0050