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Table 3 Characteristics of 440–1 OP progeny with maternity confirmed by presence of T. pallescens trnL intron

From: Experimental evidence for the ancestry of allotetraploid Trifolium repens and creation of synthetic forms with value for plant breeding

Appearance Ploidy No plants With leaf mark* No leaf mark Pollen stainability (%)
ND 0–9 10–39 40–59 60+
White clover-like 4x 19 16 3 4 1 5 8 1
  3x 1 1 1
  ND 6 6 1 1 3 1 0
Diploid-like 2x 12 2 10 6 2 3 1 0
  ND 6 1 5 3 2 1 0 0
  1. * 4x plants carried leaf marks conditioned by V and R alleles from white clover [15]. Leaf-marked 2x plants resembled, and carried an R allele from, T. occidentale.
  2. One 4x plant carried an additional chromosome.
  3. ND (not determined).