Table 1. Properties of the synteny blocks found using a syntR analysis between genetic maps of H. annuus and four other Helianthus taxa.

Genetic map	Number of synteny blocks	Rogue markers (%)	Map coverage	H. annuus coverage	Collinear	Inverted	Translocated
H. petiolaris ssp. petiolaris	97	19	80%	74%	39%	36%	26%
H. petiolaris spp. fallax	79	17	63%	65%	32%	34%	34%
H. niveus ssp. tephrodes	43	26	78%	75%	40%	21%	39%
H. argophyllus	31	20	90%	82%	45%	16%	39%

The proportion of rogue markers is based only on the chromosomes without translocations in any map (i.e., chromosomes 1–3, 5, 8–10, 11, and 14). For those chromosomes, the majority of markers mapped to a single H. annuus chromosome. The other markers are considered rogue.