Interploidy Crosses in Roses: Use of Triploids

The link below gives the abstract to the paper with the above title.

The table below is from page 111 of the full paper. I had to put periods in to get the columns to line up correctly.

"Table 1. Overview of hip formation, number of seeds per hip and ploidy level of obtained progeny resulting from different interploidy crosses in roses.

Seed parent

…Pollen parent

…% hip formation

…# seeds/hip

…# tested seedlings

…# seedling with 2n = 3x… 4x… 5x… 6x… Aneuploid

4x… 2x… 44.3… 5.4… 11… 8… 1… 2

3x… 4x… 23… 1.1… 15… 3… 11… 1

4x… 3x… 43.2… 4.7… 125… 1… 123… 1

3x… 3x… 14.0… 1.1… 14… 6… 7… 1

"

Link: www.actahort.org/books/690/690_15.htm

Thanks for the interesting post, the fertility levels were higher than I would have guessed. Did they list any of the specific triploids used?

Robert Welch

They did not identify which roses were used to produce the table.

For another part of the paper (AFLP analyses to see which Molecular markers were passed on) they used Melglory (2n=4x), Guirlande d’Amour (2n=2x), Kasteel van Ooidonk (2n=4x), Jacky’s Favorite (2n=3X), and two tetraploid seedlings from the following cross (Kastell van Ooidonk X Jacky’s Favorite).

Jacky’s Favorite is a seedling of the following cross (Melgory X Guirlande d’ Amour).