Abstract
AbstractSeventeen ISSR primers were screened on Texas bluegrass (Poa arachnifera), Kentucky bluegrass (P. pratensis), Canadian bluegrass (P. compressa), Argentine bluegrass (P. ligularis), cv. ‘Sherman’ (P. secunda), putative Texas × Kentucky (TK) (P. arachnifera ×P. pratensis) hybrids and hybrids involving Texas, Canadian, and Sherman bluegrass [(P. arachnifera × P. compressa) × (P. arachnifera ×P. secunda)], to determine whether they could be used to produce robust and reproducible DNA fingerprints and identify interspecific hybrids. Nine of the 17 primers consistently produced robust fingerprints and nine 2‐way primer combinations were also selected. DNA fingerprints were highly reproducible and the majority of the selected primers (16/18) amplified hybrid profiles using two putative TK full‐sib hybrids. Combined with a rapid DNA extraction protocol, the ISSR technique enabled a fast and practical way to detect F1 interspecific hybrids early in the breeding programme and could also be useful for other applications that require DNA‐based markers.
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