Nutritional Reserves of Autogenous and Anautogenous Selected Strains of Aedes albopictus (Diptera: Culicidae)

Abstract

Autogeny in Aedes albopictus (Skuse) females was increased from 5% in wild-type parental stock to 84% by selection through 20 generations and was decreased to 0% by selection through nine generations. Concomitantly, the mean number of eggs per female that matured autogenously increased from 6.4 to 18.3 in sugar-fed mosquitoes that developed eggs. Although the duration of the larval period of the two strains was not different, autogenous females emerged with greater amounts of metabolizable protein and lipid and total available energy reserves than did anautogenous females, but with lesser amounts of glycogen. Dry weights did not differ significantly. The difference in the energy reserves between strains was slightly more than the total energy invested in 20 autogenous eggs. Autogenous females survived 1.3 d longer than did anautogenous females when starved from emergence.

Quantitative trait loci determining autogeny and body size in the Asian tiger mosquito (Aedes albopictus)

“…For example, Ae. albopictus adult females from a colony selected for autogeny lived B1.3 days longer, when maintained under starvation conditions than those from an anautogenous colony selected from the same genetic background (Chambers and Klowden, 1994).…”

“…albopictus populations have been reported to exhibit low levels of autogeny (Bat-Miriam and Craig, 1966;Mori, 1979;Cui, 1982;Sprenger and Wuithiranyagool, 1986;Chambers and Klowden, 1994). The autogeny index (number of eggs oviposited divided by the total number of females) varied from B0.3 to 3.0 among natural populations (Bat-Miriam and Craig, 1966;Cui, 1982;Chambers and Klowden, 1994).…”

“…albopictus populations have been reported to exhibit low levels of autogeny (Bat-Miriam and Craig, 1966;Mori, 1979;Cui, 1982;Sprenger and Wuithiranyagool, 1986;Chambers and Klowden, 1994). The autogeny index (number of eggs oviposited divided by the total number of females) varied from B0.3 to 3.0 among natural populations (Bat-Miriam and Craig, 1966;Cui, 1982;Chambers and Klowden, 1994). Newly emerged autogenous females, while the similar mass as anautogenous females, contained greater amounts of protein and lipid reserves available for metabolic breakdown (Chambers and Klowden, 1994).…”

“…The autogeny index (number of eggs oviposited divided by the total number of females) varied from B0.3 to 3.0 among natural populations (Bat-Miriam and Craig, 1966;Cui, 1982;Chambers and Klowden, 1994). Newly emerged autogenous females, while the similar mass as anautogenous females, contained greater amounts of protein and lipid reserves available for metabolic breakdown (Chambers and Klowden, 1994). Ovary development is limited among autogenous individuals starved as adults, and is only initiated following at least minimal access to a carbohydrate food source or even through abdominal distention by a saline enema, suggesting involvement of gut stretch receptors (Chambers and Klowden, 1996).…”

Comparative studies on the biology and filarial susceptibility of selected blood-feeding and autogenous Aedes togoi sub-colonies

“…Extensive, comparative studies of autogenous and anautogenous mosquitoes have been reported in several species comprising at least 15 mosquito genera (Eberle & Reisen 1986, Reisen & Milby 1987, Clements 1992, Chambers & Klowden 1994, Su & Mulla 1997, Sawabe & Moribayashi 2000, Olejnicek & Gelbic 2000. Studies are mostly concerned with the intrinsic and extrinsic factors that influence the biology, physiology, biochemistry, mechanism and/or genetic control of autogeny, etc.…”