Over the last nine decades The Journal of Heredity has established and maintained a tradition of scholarly excellence in the publication of genetics research. Since 1905 virtually every major figure in the field has contributed to the journal. Now in its eighty-ninth year The Journal of Heredity covers organismal genetics in greater depth than ever before. Articles discuss gene action regulation and transmission in both plant and animal species including the genetic aspects of botany cytogenetics and evolution zoology and molecular and developmental biology. Also included are papers on such rapidly advancing fields such as genome organization comparative gene mapping molecular-functional analysis of interactive gene systems animal models of human disease molecular genetics of resistance to infectious disease in plants and animals genetic engineering in plants and animals conservation genetics of endangered species molecular evolution and speciation now computer algorithms and genetics biodiversity.