Ennis T J
Can J Genet Cytol. 1976 Mar;18(1):119-30. doi: 10.1139/g76-017.
Three classes of sex chromatin (SC) distribution have been encountered in a sample of Canadian Lepidoptera. In 78 of the 103 species examined, females were SC positive and males were SC negative. In another 24 species, females and males were SC negative. Females and males of a single species, Eucordylea resinosae, had two equal-sized SC bodies in interphase nuclei. In no species were females found to be SC negative and males SC positive. Usually presence of SC indicates an XX male and XY female sex determining mechanism, and its absence, XX male; XO female, but the exceptional occurrence of SC in females and males of a species suggests the need for caution in too universal an application of this interpretation. Chromosome numbers have also been determined for 53 of the 103 species. Male haploid numbers ranged from 11 to 61, but 30 was most frequently encountered.
在加拿大鳞翅目样本中发现了三类性染色质（SC）分布情况。在所检查的103个物种中，有78个物种的雌性SC呈阳性，雄性SC呈阴性。在另外24个物种中，雌性和雄性的SC均为阴性。在单个物种树脂桉蛾（Eucordylea resinosae）中，雌性和雄性在间期核中有两个大小相等的SC体。没有发现雌性SC呈阴性而雄性SC呈阳性的物种。通常，SC的存在表明存在XX雄性和XY雌性的性别决定机制，而其不存在则表明是XX雄性；XO雌性，但一个物种中雌性和雄性都出现SC的特殊情况表明，在过于普遍地应用这种解释时需要谨慎。还确定了103个物种中53个物种的染色体数目。雄性单倍体数目从11到61不等，但最常见的是30。
