Sperm of the wasted mutant are wasted when females utilize the stored sperm in Drosophila melanogaster
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چکیده
منابع مشابه
Sperm competition and sperm loss in Drosophila melanogaster females fertilized by YXY-O males.
T is generally assumed that in animal species all the sperm from a heterozygote, I though genetically different, have the same functional properties; consequently they cannot compete in fertilization, and no selection is possible. This has been interpreted as meaning that genes stop functioning after the first meiotic division (MULLER and SETTLES 1927). An exception to this principle has been d...
متن کاملSex peptide is required for the efficient release of stored sperm in mated Drosophila females.
The Drosophila seminal fluid protein (SFP) sex peptide (SP) elicits numerous post-mating responses, including increased egg laying and decreased sexual receptivity, in the mated female. Unlike other SFPs, which are detectable in mated females for only a few hours post mating, SP is maintained-and its effects are sustained-for several days. The persistence of SP in the mated female's reproductiv...
متن کاملWhen EGF is offside, magnesium is wasted.
Our understanding of magnesium (Mg(2+)) regulation has recently been catapulted forward by the discovery of several disease loci for monogenic disorders of Mg(2+) homeostasis. In this issue of the JCI, Groenestege et al. report that their study of a rare inherited Mg(2+) wasting disorder in consanguineous kindred shows that EGF acts as an autocrine/paracrine magnesiotropic hormone (see the rela...
متن کاملWasted Food, Wasted Energy: The Embedded Energy in Food Waste in the United States
This work estimates the energy embedded in wasted food annually in the United States. We calculated the energy intensity of food production from agriculture, transportation, processing, food sales, storage, and preparation for 2007 as 8080 +/- 760 trillion BTU. In 1995 approximately 27% of edible food was wasted. Synthesizing these food loss figures with our estimate of energy consumption for d...
متن کاملWasted Food, Wasted Nutrients: Nutrient Loss from Wasted Food in the United States and Comparison to Gaps in Dietary Intake.
BACKGROUND Previous research has estimated that wasted food in the United States contains between 1,249 and 1,400 kcal per capita per day, but little is known about amounts of other nutrients embedded in the 31% to 40% of food that is wasted. OBJECTIVE This research aimed to calculate the nutritional value of food wasted at the retail and consumer levels in the US food supply, and contextuali...
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ژورنال
عنوان ژورنال: Genes & Genetic Systems
سال: 2011
ISSN: 1341-7568,1880-5779
DOI: 10.1266/ggs.86.97