Fertility and mating performance of interspecific crosses between Heliothis virescens and H. subflexa backcrossed for three generations to H. subflexa
Hybrids were produced from interspecific crosses between Heliothis virescens (F.) and H. subflexa (Guenee), and backcross progeny (BC) were obtained by crossing hybrid females with H. subflexa males. The reproductive capacity of BC/sub 1/ and BC/sub 2/ adults was determined by crossing both males and females with H. virescens and H. subflexa. The BC/sub 1/ and BC/sub 2/ females were partially to fully fertile; the BC/sub 1/ males were mostly sterile. Females crossed with BC/sub 1/ males seldom received eupyrene sperm in their spermathecae. Females mated with BC/sub 2/ males rceived eupyrene sperm more frequently and the eggs they laid had a higher percentage hatchability than those laid by females crossed with BC/sub 1/ males. This recovery of fertility in BC/sub 2/ males was not dependent upon type of interspecific cross or upon species of female.
- Research Organization:
- Agricultural Research Service, Fargo, ND
- OSTI ID:
- 5064247
- Journal Information:
- Ann. Entomol. Soc. Am.; (United States), Vol. 70:5
- Country of Publication:
- United States
- Language:
- English
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