Rabbiteye blueberry (Vaccinium ashei = V. virgatum) comprises much of the blueberry acreage in the southeastern USA states of Louisiana and Mississippi. Three genotypes of X. fastidiosa were identified from rabbiteye blueberry in Louisiana by multilocus sequence typing. A genotype that was found at two orchards, sequence type (ST) 42, was identical to one previously found in southern highbush blueberry in Georgia and two non-blueberry native species in Texas. Two newly identified genotypes shared most alleles with X. fastidiosa strains considered, like ST 42, to be part of a group that is believed to have resulted from recombination between X. fastidiosa subsp. multiplex and subsp. fastidiosa. These two genotypes each also had one newly identified allele. This work suggests that a narrow range of X. fastidiosa genotypes infect rabbiteye blueberry in Louisiana but that rabbiteye blueberry may serve as an alternative host for X. fastidiosa strains that infect more susceptible southern highbush cultivars.

兔眼蓝莓（Vaccinium ashei  =  V. virgatum）占美国东南部路易斯安那州和密西西比州的大部分蓝莓种植面积。通过多基因座序列分型，从路易斯安那州的兔眼蓝莓中鉴定出三种X. fastidiosa基因型。在两个果园中发现的一种基因型，序列类型（ST）42，与先前在佐治亚州南部的高灌木蓝莓和德克萨斯州的两个非蓝莓原生物种中发现的基因型相同。两个新发现的基因型与X.fastidiosa菌株（如ST 42）共享大多数等位基因，它们被认为是由X.fastidiosa亚种重组产生的。复用和子空间fastidiosa。这两个基因型各具有一个新近鉴定的等位基因。这项研究表明路易斯安那州的蓝眼蓝莓有少量的X. fastidiosa基因型感染，但是蓝眼蓝莓可以作为X. fastidiosa菌株的替代宿主，该菌株可以感染更易感的南部高灌木品种。