SELECTION AND EVALUATION OF A NEW KIWIFRUIT ROOTSTOCK HYBRID FOR BACTERIAL CANKER RESISTANCE
Bacterial canker, caused by Pseudomonas syringae pv. actinidiae (Psa), is a serious disease of kiwifruit (Acitinidia) worldwide. The aim of this study is to evaluate the rootstock for resistance to Psa. A new rootstock (YZ310) was obtained by crossing between QM91136 (female) and SX45872 (male). The disease resistance of rootstock was identified using the in vitro and live body bioassay. The results showed that YZ310 had high resistance to Psa, and good grafting compatibility and strong symbiotic compatibility. SSR markers were used to analyze the canker-resistant genes of kiwifruit with molecular markers. And it was found that UDK97-428 marker could be hereditary from the resistant parents, YZ310 and other resistant cultivars. This special DNA marker could provide a basis for the identification of hybrid resistant to Psa and molecular marker-assisted selection (MAS).
Lei, Y.H., Jing, Z.B. and Li, L. 2015. SELECTION AND EVALUATION OF A NEW KIWIFRUIT ROOTSTOCK HYBRID FOR BACTERIAL CANKER RESISTANCE. Acta Hort. (ISHS) 1096:413-420
bacterial canker, kiwifruit, rootstock, special DNA marker