1921
Volume 8, Issue 2_Part_1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Summary

The four species of , namely, , and of the orient were successfully interbred in all 12 possible species-crossing combinations, including the male and female reciprocal matings. Fertile hybrids resulted from all the crossings. In addition, a male hybrid resulting from an + cross was crossed to a female .

The hybrids from the species crossings had characteristics which were intermediate to those of the parents as well as representing those of the parents. Although no dominant or recessive characters were evident, the bright yellow, coarse, compact “eyebrows” of + appeared more frequently than the light yellow, fine “eyebrow” pigment of the other species. The prominent shell ridges of appeared infrequently in the hybrids. The most successful crossing was obtained in the + matings.

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/content/journals/10.4269/ajtmh.1959.8.195
1959-03-01
2017-09-19
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