The importance of hybridization in plant speciation and evolution has been debated for
decades, with opposing views of hybridization as either a creative evolutionary force or …

Intraspecific gene evolution cannot always be represented by a bifurcating tree. Rather,
population genealogies are often multifurcated, descendant genes coexist with persistent …

The long-awaited revision of the industry standard on phylogenetics Since the publication of
the first edition of this landmark volume more than twenty-five years ago, phylogenetic …

40 Years of Evolution is a landmark study of the finches first made famous by Charles
Darwin, one that documents as never before the evolution of species through natural …

F ew scientific ideas are so well embedded in popular culture as the idea that certain
features of an organism are genetically determined, while others are acquired by interaction …

The study of hybrids and their evolutionary significance is often based on a number of tacit
assumptions regarding character expression in hybrids. This article examines …

Reconstruction of phylogenies from molecular data has become an important and
increasingly common approach in systematics. The product of such studies is a gene tree …

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

The field of systematic biology has been revitalized and transformed during the last few
decades by the confluence of phylogenetic thinking with ready access to the tools of …

Perhaps no one has had a greater influence on the development of hybridization theory than
Dr. Ledyard Stebbins. However, his contributions have not been restricted to his writings or …