• Publications
  • Influence
Regression Analysis by Example
Simple Linear Regression Multiple Linear Regression Regression Diagnostics: Detection of Model Violations Qualitative Variables as Predictors Transformation of Variables Weighted Least Squares TheExpand
  • 1,279
  • 145
An ordinal classification for the families of flowering plants
Recent cladistic analyses are revealing the phylogeny of flowering plants in increasing detail, and there is support for the monophyly of many major groups above the family level. With many elementsExpand
  • 1,117
  • 31
  • PDF
Phylogeny and systematics of Pinus
  • 283
  • 29
Molecular phylogeny of Acremonium and its taxonomic implications.
Acremonium is generally considered to be a highly polyphyletic form genus containing distantly related fungi. Sectional divisions within Acremonium distinguish the clavicipitaceous grass endophytesExpand
  • 383
  • 24
  • PDF
Extensive variation in evolutionary rate of rbcL gene sequences among seed plants.
Extensive variation in synonymous and nonsynonymous rates of substitution was observed among 50 sequences of the gene coding for the large subunit of ribulose-1,5-bisphosphate carboxylase (rbcL)Expand
  • 261
  • 13
  • PDF
Origin and evolution of gymnosperms
  • 312
  • 13
Spouse similarity in American and Swedish couples
A very similar pattern of homogamy was found in samples of American and Swedish couples for physical, social, and behavioral variables. In the Swedish sample, there were only minor differences inExpand
  • 187
  • 12
Familiar concepts and relationships in the conifers based on rbcL and matK sequence comparisons
Analysis of sequence data for the chloroplast encoded genes rbcL and matK for 40 taxa representing all conifer families and subfamilies, rooted on Ginkgo biloba, provides robust support for theExpand
  • 83
  • 12
  • PDF
Phylogenetic utility of the nuclear gene arginine decarboxylase: an example from Brassicaceae.
Arginine decarboxylase (ADC) is an important enzyme in the production of putrescine and polyamines in plants. It is encoded by a single or low-copy nuclear gene that lacks introns in sequencesExpand
  • 127
  • 10
  • PDF
Phylogenetic relationships in Ephedra (Ephedraceae) inferred from chloroplast and nuclear DNA sequences.
Sequences of the nuclear ribosomal DNA internal transcribed spacer region 1 and the chloroplast-encoded genes maturase K and ribulose-1,5 biphosphate carboxylase large subunit were obtained fromExpand
  • 61
  • 10