• Publications
  • Influence
Species Selection Maintains Self-Incompatibility
Incompatible Self-Compatibility Macroevolutionary processes driving species differences in diversification rates are important in explaining the variation we see in nature, but the extent of thisExpand
  • 345
  • 29
  • PDF
Evolutionary relationships among self-incompatibility RNases
  • B. Igić, J. Kohn
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences…
  • 6 November 2001
T2-type RNases are responsible for self-pollen recognition and rejection in three distantly related families of flowering plants—the Solanaceae, Scrophulariaceae, and Rosaceae. We used phylogeneticExpand
  • 247
  • 29
  • PDF
Loss of Self‐Incompatibility and Its Evolutionary Consequences
We review and analyze the available literature on the frequency and distribution of self‐incompatibility (SI) among angiosperms and find that SI is reported in more than 100 families and occurs in anExpand
  • 299
  • 28
  • PDF
Primary structural features of the S haplotype-specific F-box protein, SFB, in Prunus
The gene SFB encodes an F-box protein that has appropriate S-haplotype-specific variation to be the pollen determinant in the S-RNase-based gametophytic self-incompatibility (GSI) reaction in PrunusExpand
  • 133
  • 22
  • PDF
Allelic Diversity and Gene Genealogy at the Self-Incompatibility Locus in the Solanaceae
The self-incompatibility (S) locus of flowering plants offers an example of extreme polymorphism maintained by balancing selection. Estimates of recent and long-term effective population size (Ne)Expand
  • 146
  • 16
Ancient polymorphism reveals unidirectional breeding system shifts
Loss of complex characters is thought to be irreversible (Dollo's law). However, hypotheses of irreversible evolution are remarkably difficult to test, especially when character transitions areExpand
  • 160
  • 14
  • PDF
S-allele diversity in a natural population of Physalis crassifolia (Solanaceae) (ground cherry) assessed by RT-PCR
Allelic diversity at the self-incompatibility (S-) locus in the ground cherry, Physalis crassifolia (Solanaceae), was surveyed in a natural population occurring in Deep Canyon, CA, using a molecularExpand
  • 51
  • 10
  • PDF
RNase-Based Self-Incompatibility: Puzzled by Pollen S[W]
Many plants have a genetically determined self-incompatibility system in which the rejection of self pollen grains is controlled by alleles of an S locus. A common feature of these S loci is thatExpand
  • 47
  • 10
  • PDF
RECONSTRUCTION OF THE EVOLUTION OF REPRODUCTIVE CHARACTERS IN PONTEDERIACEAE USING PHYLOGENETIC EVIDENCE FROM CHLOROPLAST DNA RESTRICTION‐SITE VARIATION
We reconstructed the phylogenetic history of Pontederiaceae using chloroplast DNA restriction‐site variation from approximately two‐thirds of the species in this family of aquatic monocotyledons. TheExpand
  • 118
  • 9