All crop plants are polyploid and some genomes have been duplicated more recently than others. Advancements in cytogenetic and molecular tools, including high-density genetic mapping, fl orescent in situ hybridization, and genome and EST sequencing, have enabled new insights into genome composition and the history of genome duplications in crop plants. We review this evidence and discuss the re...

All crop plants are polyploid and some genomes have been duplicated more recently than others. Advancements in cytogenetic and molecular tools, including high-density genetic mapping, fl orescent in situ hybridization, and genome and EST sequencing, have enabled new insights into genome composition and the history of genome duplications in crop plants. We review this evidence and discuss the re...

background rodents play a major role in economic losses and public health problems. these animals are considered as natural reservoir hosts of zoonotic cutaneous leishmaniasis (zcl), one of the major health concerns in iran. conclusions the spatial and temporal monitoring of wild rodents will help to predict the potential zoonotic rodent-borne diseases. objectives this research was aimed to stu...

Hibiscus section Muenchhusia is a North American taxon with Žve species as recognized in the most recent taxonomic revision: H. coccineus, H. dasycalyx, H. grandiorus, H. laevis, and H. moscheutos. To investigate the monophyly of Hibiscus section Muenchhusia, its relationship to other Hibiscus species, and the phylogenetic relationships among its species, DNA sequence data were obtained. To in...

L Stebbins, born January 6, 1906, was deeply fond of nature all his life, starting with his experiences around Seal Harbor, Maine, when he was 4 years old. While he was still young, his mother contracted tuberculosis, and the family moved west to find a more healthy climate for her, first in Pasadena, then in Colorado Springs. An important formative period of Ledyard’s life was spent at Cate Sc...

Gene frequencies at 13 isozyme loci were determined in three South American taxa of cultivated potatoes [the diploid group (gp.) Stenotomum, the diploid subgroups (subgp.) Goniocalyx, and the tetraploid gp. Andigena of S. tuberosum], in the diploid weed species S. sparsipilum, and in most of the main cultivars now raised in the Northern Hemisphere (the tetraploid gp. Tuberosum of S. tuberosum)....

The Forest Service's research on decay fungi and decay caused by fungi is done mainly in two research work units at the Forest Products Laboratory. One unit, the Center for Forest Mycology Research, performs biosystematic research on root-rot and products-rot fungi in the genera Armillaria, Phellinus, and Phlebia and maintains the culture collection supporting this research and other research o...

The creationist biosystematic method of baraminology has grown significantly in the past decade. Its conceptual foundations were discussed in the evolution/creation debates of the nineteenth century, long before Frank Lewis Marsh coined the term baramin in 1941. Currently, baraminology has been applied to dozens of groups, and the results of 66 baraminology studies are summarized and evaluated ...