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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).