The transition from outcrossing to self-fertilization is one of the most common evolutionary
changes in plants, yet only about 10–15% of flowering plants are predominantly selfing. To …

The mechanisms by which flowering plants choose their mating partners have interested
researchers for a long time. Recent findings on the molecular mechanisms of non-self …

Flowering plants have evolved numerous intraspecific and interspecific prezygotic
reproductive barriers to prevent production of unfavourable offspring. Within a species, self …

Human social interactions crucially depend on the ability to represent other agents' beliefs
even when these contradict our own beliefs, leading to the potentially complex problem of …

Advances in plant cell molecular biology have considerably increased our understanding of
pollen-pistil barriers, particularly those operated by incompatibility mechanisms, and, at the …

Since Darwinian times considerable knowledge has accumulated on the distribution,
physiology and genetics of self-incompatibility (SI) in higher plants. In the second half of this …

The ornate surfaces of male and female reproductive cells in flowering plants have long
attracted attention for their variety and evolutionary significance. These structures, and the …

Summary 599I. Introduction 599II. Concepts and terminology 600III. Historical background
600IV. Studies of experimental hybrids 6011. Isolating mechanisms 6012. Prezygotic …

In a very interesting book and a series of articles (two of which have appeared in this
journal) Sherwin Carlquist (1965, 1966a, b, c, d) has published his views on the biota of long …

The study of variability within species is important to all biologists who use genetic markers.
Since the discovery of molecular variability among normal individuals, data have been …