ZOOLOGICAL NOMENCLATURE.
ZOOLOGICAL NOMENCLATURE.
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DOI:
10.1126/science.66.1703.170
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发表时间:
1927-08
期刊:
影响因子:
56.9
通讯作者:
C. W. Stiles
中科院分区:
文献类型:
--
作者:
C. W. Stiles
admit that we have thus far given only short and incomplete accounts of the many kinds and cases of intersexuality encountered in our material. We ac-knowledge and regret, and are steadily supplementing, this incompleteness. But morphology, beloved of Goldschmidt, is I presume ade4uately represented by oviducts in males (Anat. Rec., 1925, 31, p. 349); by persistent, even functional, right ovaries in females (Amer. Nat., 1916, 50); and by the hermaphrodites listed (Whitman, 2, 1919), or referred to in connection with rather full descriptions of some other ab-normal (possibly not intersexual) gonad conditions (Brit. Jour. Exp. Biol., 1925, 2). If these, as yet little described, cases of hermaphroditism should lead our critic to dispose of them by the further assertion that Riddle can not properly recognize an hermaphrodite he is entirely welcome to that position. Goldschmidt states that our" claim to the experimental production of sex-reversal by reproductive overwork and by crossing... is based on the as-sumption that the first egg of a clutch is male, the second female." This is simply not true." Our studies on'sex control'manage to get on whether the eggs come in normal order, reversed order or utter disorder"(Amer. Nat., 1925, 59). Also, according to Goldschmidt we have" never proved experimental sex-reversal or made it even probable." Waiving the large question of proofs, we may note that calculation of probabilities in a single result obtained in one of our very few" family" crosses indicates that-apart from sex-reversal-this result" could be ex-pected to occur only once in 9,384 trials"(Anat. Rec., 1925, 31). So apparently, either Goldsehmidt must read more, or in my items of data I must eliminate part of one chance in 9,384. To say that" Riddle's theory of sex determination by different metabolic rates... fails in the normal case of male heterogamety; it fails in such cases of female heterogamety as the gipsy moth, etc.," is merely to use words without meaning. The theory was founded upon forms showing" female heterogam-ety"(pigeons), and early applied, successfully we think, to forms (frogs) which later proved to show" male heterogamety"; moreover, as earlier pointed out, parts of this metabolic theory were later borrowed and lugged unacknowledged into Goldschmidt's own theory of sex-determination in the gipsy moth. Well or ill founded-and much in addition to work with pigeons forms part of its foundation-there exists a vigorous quantitative theory of sex, based on real or fanciful sex-reversal and intersexuality apart from zygotic composition (on which Gold-schmidt's studies are based), and on measurements of metabolic sex distinction in all stages-ovum to adult. We and others have taken a good or a bad admit that we have thus far given only short and incomplete accounts of the many kinds and cases of intersexuality encountered in our material. We ac-knowledge and regret, and are steadily supplementing, this incompleteness. But morphology, beloved of Goldschmidt, is I presume ade4uately represented by oviducts in males (Anat. Rec., 1925, 31, p. 349); by persistent, even functional, right ovaries in females (Amer. Nat., 1916, 50); and by the hermaphrodites listed (Whitman, 2, 1919), or referred to in connection with rather full descriptions of some other ab-normal (possibly not intersexual) gonad conditions (Brit. Jour. Exp. Biol., 1925, 2). If these, as yet little described, cases of hermaphroditism should lead our critic to dispose of them by the further assertion that Riddle can not properly recognize an hermaphrodite he is entirely welcome to that position. Goldschmidt states that our" claim to the experimental production of sex-reversal by reproductive overwork …