Cutillas C, Valero A, González-Castro J, Guevara D C
J Parasitol. 1985 Aug;71(4):500-3.
A cytological study was carried out, using male Dictyocaulus filaria, that revealed the diploid number of chromosomes was 2n = 11 and the sex determining mechanism was XO. The behaviour of the chromosomes in the different stages of meiosis was also investigated. Cross, open ring and rod bivalents were observed in diakinesis. The chromosomes appeared to be acrocentric since they acquired a radial disposition in Metaphase-II. The chiasma frequency was 1 and the nucleolus-organizing region was located at the ends of the chromosomes.
利用雄性丝状网尾线虫进行了一项细胞学研究，结果显示染色体的二倍体数目为2n = 11，性别决定机制为XO。还研究了减数分裂不同阶段染色体的行为。在终变期观察到交叉、开放环和棒状二价体。由于染色体在中期II呈放射状排列，所以看起来是近端着丝粒染色体。交叉频率为1，核仁组织区位于染色体末端。
