Ryley J F, Hardman L
J Parasitol. 1978 Oct;64(5):878-81.
Eimeria mivati was described as a new species of chicken coccidia in 1964 by Edgar and Seibold, but recently some British workers have relegated its status to that of a variety of Eimeria acervulina. Using strains supplied by Dr. Edgar, we have prepared lines of E. acervulina resistant to methyl benzoquate, sulfaquinoxaline and robenidine and a line of E. mivati resistant to methyl benzoquate. Genetic transfer of resistance between the various lines of E. acervulina to produce doubly-resistant coccidia has been demonstrated, but no such transfer could be obtained between E. mivati resistant to methyl benzoquate and the resistant lines of E. acervulina. Although some immunological relationship between E. acervulina and E. mivati has been demonstrated, we conclude that this failure of the 2 organisms to interbreed lends support to the status of E. mivati as a distinct species.
1964年，埃德加（Edgar）和西博尔德（Seibold）将米瓦蒂艾美球虫（Eimeria mivati）描述为鸡球虫的一个新物种，但最近一些英国研究人员将其地位降为堆型艾美球虫（Eimeria acervulina）的一个变种。利用埃德加博士提供的菌株，我们培育出了对甲基苯醌、磺胺喹恶啉和氯苯胍耐药的堆型艾美球虫品系，以及对甲基苯醌耐药的米瓦蒂艾美球虫品系。已证明堆型艾美球虫各品系之间耐药性的遗传转移可产生双重耐药球虫，但对甲基苯醌耐药的米瓦蒂艾美球虫与堆型艾美球虫的耐药品系之间无法实现这种转移。尽管已证明堆型艾美球虫和米瓦蒂艾美球虫之间存在一些免疫关系，但我们得出结论，这两种生物体无法杂交支持了米瓦蒂艾美球虫作为一个独特物种的地位。
