Obiamiwe B A, Ohagi I E, Ugbomoiko U S
Department of Zoology, Edo State, University, Ekpoma, Nigeria.
Parasitol Res. 1995;81(6):527-30. doi: 10.1007/BF00931797.
Three cytotypes of Foleyella agamae were isolated from naturally infected wild-caught Agama agama in Nigeria. Cytotype A (2n = 8) has a body length/oesophageal length ratio (L/O) of 87.6 +/- 14.2 in female worms and a large somatic size (length, 63.8 +/- 12.7 mm in female worms and 25.5 +/- 3.4 mm in males). Cytotype B (2n = 6) has an L/O of 43.4 +/- 6.6 in females and a small to average somatic size (length, 36.7 +/- 11.9 mm in females and 19.5 +/- 2.3 mm in males). Cytotype C (2n = 4) has an L/O of 23.8 +/- 8.2 in female worms and a small somatic size (length, 18.8 +/- 3.8 mm in females and 14.1 +/- 3.0 mm in males). No cytotype with odd numbers of chromosomes was observed. Comparisons with similar types of speciation in medically important filarial parasites were drawn. Introgressive hydridisation in the speciation of filarial parasites is postulated.
从尼日利亚自然感染的野生捕获鬃狮蜥中分离出三种福氏鬃狮蜥细胞型。细胞型A（2n = 8）雌性蠕虫的体长/食管长度比（L/O）为87.6±14.2，体细胞体积大（雌性蠕虫体长63.8±12.7毫米，雄性为25.5±3.4毫米）。细胞型B（2n = 6）雌性的L/O为43.4±6.6，体细胞大小小至中等（雌性体长36.7±11.9毫米，雄性为19.5±2.3毫米）。细胞型C（2n = 4）雌性蠕虫的L/O为23.8±8.2，体细胞体积小（雌性体长18.8±3.8毫米，雄性为14.1±3.0毫米）。未观察到具有奇数染色体的细胞型。与医学上重要的丝虫寄生虫中类似的物种形成类型进行了比较。推测丝虫寄生虫物种形成中的渐渗杂交。
