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Table 1 Summary of genotypes and phenotypes of Hieracium plants used in the analysis and nucleic acids examined

From: Generation of an integrated Hieracium genomic and transcriptomic resource enables exploration of small RNA pathways during apomixis initiation

Species (genotype) Genetic constitutiona Phenotypeb MMC stage ovaries FM stage ovaries Leaves
H. praealtum (R35) 2n = 4x-1 = 35 Apomict LOA/LOP mRNA sRNA mRNA sRNA sRNA
H. piloselloides (D36) 2n = 4x = 36 Apomict LOA/LOP mRNA sRNA mRNA sRNA nd
H. piloselloides (D18) 2n = 2x = 18c Apomict LOA/LOP nd nd DNA
H. praealtum (m115) 2n = 4x-1 = 35d,e Sexual loa/lop mRNA sRNA mRNA sRNA sRNA
H. praealtum (m134) 2n = 4x = 36e Sexualf loa/LOP mRNA sRNA mRNA sRNA sRNA
H. pilosella (P36) 2n = 4x = 36 Sexual mRNA sRNA mRNA sRNA nd
  1. nd not done
  2. aIndicates ploidy of the sporophyte, and the chromosome number
  3. b LOA and LOP indicate apospory and autonomous seed formation are evident, respectively; loa and lop indicate their phenotypic absence
  4. cD18, a dihaploid derived from D36 (see introduction)
  5. dThe chromosome number of m115 is presumed to be the same as R35
  6. e m115 and m134 are derived from gamma-ray mutagenesis of R35
  7. fGametophytes in m134 ovules are sexually derived, but are still capable of autonomous seed development