Embryo nutrition in parthenogenetic viviparous aphids
نویسندگان
چکیده
منابع مشابه
Microsatellite and chromosome evolution of parthenogenetic sitobion aphids in Australia.
Single-locus microsatellite variation correlated perfectly with chromosome number in Sitobion miscanthi aphids. The microsatellites were highly heterozygous, with up to 10 alleles per locus in this species. Despite this considerable allelic variation, only seven different S. miscanthi genotypes were discovered in 555 individuals collected from a wide range of locations, hosts and sampling perio...
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DNA demethylation catalysed by the ten-eleven translocation (TET) protein is an important step during extensive global epigenetic reprogramming in mammals. However, whether TET proteins play a key role in DNA demethylation during the development of bovine pre-implanted embryos is still unclear. In this study, we utilized dimethyloxallyl glycine (DMOG), a small-molecule inhibitor of the TET prot...
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Stimuli associated with copulatory behavior are often needed to maximize reproductive output in internally fertilized sexual taxa. Although non-pseudogamous parthenogenetic females have no need for sperm, parthenogens descended from sexual ancestors may still require copulatory stimuli to reach their full reproductive potential. Retention of physiological dependence on copulation in parthenogen...
متن کاملThe effects of reproductive specialization on energy costs and fitness genetic variances in cyclical and obligate parthenogenetic aphids
Organisms with coexisting sexual and asexual populations are ideal models for studying the consequences of either reproductive mode on the quantitative genetic architecture of life-history traits. In the aphid Rhopalosiphum padi, lineages differing in their sex investment coexist but all share a common parthenogenetic phase. Here, we studied multiple genotypes of R. padi specialized either for ...
متن کاملNutrition of the developing embryo and hatchling.
Nutrient needs central to satisfactory egg incubation well-being undergo several major changes from fertilization until the reliance of the chick on feed. Glucose is central, with the initiation of incubation until the chorioallantois accesses O(2) to use for fatty acid oxidation. Nutrient recovery from albumen and yolk is largely commensurate with body assembly through to completion of the emb...
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ژورنال
عنوان ژورنال: Physiological Entomology
سال: 2009
ISSN: 0307-6962,1365-3032
DOI: 10.1111/j.1365-3032.2008.00669.x