If there aren't specific markers for this crop you can use random markers (ie. ISSR), Internal described spacers (http://www.pnas.org/content/109/16/6241.full.pdf) or chloroplast markers rbcL, matK (https://www.ncbi.nlm.nih.gov/pubmed/26345851; http://www.pnas.org/content/106/31/12794.full?sid+38cee406-d425-4f58-8edc-bbcb2ac34bad)