Comparative and functional genomics reveals genetic diversity and determinants of host specificity among reference strains and a large collection of Chinese isolates of the phytopathogen Xanthomonas campestris pv. campestris

Table 3 Postulated gene-for-gene model to explain the relationship between Xcc strains and the plants used*

	Resistant genes				Postulated avirulence genes in Xcc strains tested
Plants^†	Rc1	Rc2	Rc3	Rp1	avrRc1	avrRc2	avrRc3	avrRp1
TP1	Rc1	...	...	...	-	+	+	...
TP2	...	...	...	...	+	+	+	...
TP3	...	Rc2	...	...	+	-	+	...
TP4	...	...	...	...	+	+	+	...
TP5	...	...	...	...	+	+	+	...
TP6	...	...	...	...	+	+	+	...
TP7	...	...	...	...	+	+	+	...
TP8	...	...	Rc3	...	+	+	-	...
TP9	...	Rc2	...	...	+	-	+	...
TP10	...	...	...	...	+	+	+	...
TP11	...	...	...	...	+	+	+	...
TP12	...	...	...	Rp1	...	...		HR

*+, compatible interaction (susceptibility); -, incompatible interaction (resistance); ..., data unavailable. ^†The plants used for pathogenicity test. TP1, mustard (B. juncea var. megarrhiza Tsen et Lee) cv. Guangtou; TP2, Chinese kale (B. oleracea var. alboglabra) cv. Xianggangbaihua; TP3, cabbage (B. oleracea var. capitata) cultivar (cv.) Jingfeng-1; TP4, kohlrabi (B. oleracea var. gongylodes) cv. Chunqiu; TP5, pakchoi cabbage (B. rapa subsp. chinensis) cv. Jinchengteai; TP6, pakchoi cabbage (B. rapa subsp. chinensis) cv. Naibaicai; TP7, Chinese cabbage (B. rapa subsp. pekinensis) cv. Zhongbai-4; TP8, Chinese cabbage (B. rapa subsp. pekinensis) cv. Zhongbai-83; TP9, radish (R. sativus var. longipinnatus) cv. Huaye; TP10, radish (R. sativus var. radicula) cv. Manshenghong; TP11, radish (R. sativus var. sativus) cv. Cherry Belle; TP12, non-host plant pepper (Capsicum annuum v. latum) ECW10R.

ISSN: 1474-760X