The cost of switching from asexual to sexual reproduction in an aphid
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ArticleLanguage: En Publication details: 1988Subject(s):
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Entomologia Experimentalis et Applicata v. 47, no. 3, p. 283-287615161Summary: The fecundity of sexual morphs (gynoparae and oviparae) of Sitobion avenae, a pest of cereals, was compared with that of the asexual female morph (virginoparae) from the same clone in the laboratory at 12øC to establish the cost, in terms of the reduction in fecundity, of switching from asexual to sexual reproduction. Gynoparae had a higher initial fecundity than alate virginoparae, but virginoparae were significantly more fecund over the first 20 days of reproductive life. The potential fecundity of sexual and asexual lineages was estimated for 4 generations at 12øC under long and short day conditions. By the 4th generation, parthenogenetic
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | Reprints Collection | REP-4380 (Browse shelf(Opens below)) | 1 | Available | 615161 |
Graphs, references p. 287
The fecundity of sexual morphs (gynoparae and oviparae) of Sitobion avenae, a pest of cereals, was compared with that of the asexual female morph (virginoparae) from the same clone in the laboratory at 12øC to establish the cost, in terms of the reduction in fecundity, of switching from asexual to sexual reproduction. Gynoparae had a higher initial fecundity than alate virginoparae, but virginoparae were significantly more fecund over the first 20 days of reproductive life. The potential fecundity of sexual and asexual lineages was estimated for 4 generations at 12øC under long and short day conditions. By the 4th generation, parthenogenetic
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