Adviser: Julia McQuillan Because motherhood is an expected and valued identity in the United States, becoming a mother should lead to an increase in self-esteem and perceiving a problem becoming a mother should lead to a decrease in self-esteem. Little research has examined the combined experience of both identifying with a fertility problem and becoming a mother or not over time. Guided by ide...

Session 4 Conventional and Novel Methodologies for Plant Improvement ABSTRACT Cultivar development in alfalfa relies on heterosis, that has been mainly exploited by intercrossing selected clones from diverse gemplasm sources; an alternative way was proposed, based on developing double cross cultivars obtained by crossing clones selected for self-sterility, propagated by somatic seed. A differen...

Most models of speciation require gradual change and geographic or ecological isolation for new species to arise. Homoploid hybrid speciation occurred readily between Saccharomyces cerevisiae and Saccharomyces paradoxus. Hybrids had high self-fertility (about 82%), low fertility when backcrossed to either parental species (about 7.5%), and vigorous growth under different thermal environments th...

The results of a three-year study the self-fertility 15 varieties highbush blueberry and one variety lowbush are presented. fruiting indicators (berry setting, average berry weight, number seeds per berry) in case most self-pollinating varieties, as rule, lower than with natural cross-pollination. In accordance fruit set during self-pollination flowers, ranked into five groups corresponding to ...

This paper studies the quantity-quality trade-o¤model of fertility, under the assumption of hyperbolic discounting. It shows that the lack of self-control may play a di¤erent role in a developed economy and in a developing one. In the …rst case characterized by a positive investment in quality, the lack of self control tends to reduce fertility. In the second case, it is possible that the lack ...

A common yet poorly understood evolutionary transition among flowering plants is a switch from outbreeding to an inbreeding mode of mating. The model plant Arabidopsis thaliana evolved to an inbreeding state through the loss of self-incompatibility, a pollen-rejection system in which pollen recognition by the stigma is determined by tightly linked and co-evolving alleles of the S-locus receptor...