Body size and fitness relation in male and female Diaeretiella rapae

Kant, Rashmi; Minor, Maria A.; Trewick, Steven A.; Sandanayaka, W.R.M.

doi:10.1007/s10526-012-9452-4

Cited by 26 publications

(10 citation statements)

References 26 publications

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“…Several studies have reported a relationship between host quality and parasitoid survival (Lauzière et al , 2001; Sagarra et al , 2001; Li & Sun, 2011; Kishani Farahani & Goldansaz, 2013). In parasitoids, like other insects, large adult body size is often related to an increase resource carry-over from the larval stage, and is manifested in higher energy reserves (López et al , 2009, Kant et al , 2012). Our results support this, indicating that host age at oviposition affects adult survival because larger hosts provide more resources for the larval stages of the parasitoid.…”

Section: Discussionmentioning

confidence: 99%

The effect of host nutritional quality on multiple components ofTrichogramma brassicaefitness

Farahani

Ashouri

Zibaee

et al. 2016

Bull. Entomol. Res.

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16For parasitoids, the host represents the sole source of nutrients for the developing immature. 17Subsequently, host quality is an important factor affecting immature development and the 18 resulting fitness of the emerging parasitoid, with impacts on fecundity, longevity and offspring 19 sex ratio. Host age is an integral component of host quality and a key factor in host selection by 20 the female parasitoid. The current study aimed to investigate the effect of decreasing host quality 21 (determined by increasing host age) on adult life history traits (size, wing loading, longevity, and

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Section: Discussionmentioning

confidence: 99%

The effect of host nutritional quality on multiple components ofTrichogramma brassicaefitness

Farahani

Ashouri

Zibaee

et al. 2016

Bull. Entomol. Res.

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“…In fact, many studies have demonstrated that many species of parasitoid wasps can control offspring sex ratio in response to environmental variables. It has been reported that the sex ratio of parasitoid was affected by the superparasitism (Kanungo, 1955;Salt, 1936;Walker, 1967;Abram et al, 2012;Montoya et al, 2010), the host size (Ueno, 1998), the photoperiod (Bouletreau, 1976;Hoelscher and Vinson, 1971), the relative humidity (Legner, 1977), the number of wasp foundresses (Somjee et al, 2011) and the body size of male and female wasps (Kant et al, 2012) and so on.…”

Section: Introductionmentioning

confidence: 99%

Effect of some environmental and biological factors on reproductive characters of Trichogramma spp.

HaiTao¹,

Cong²,

Zhang³

et al. 2013

Afr. J. Agric. Res.

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Many studies have demonstrated that many species of parasitoid wasps can control offspring sex ratio in response to environmental variables. This article tests the effects of temperature, relative humidity, photoperiod, foundress number, foundress age, host number, interval time of host supplying, species of food, species of host and symbiotic bacterium (Wolbachia) on sex ratio of Trichogramma ostriniae. Results showed that the sex ratio of T. ostriniae was affected significantly by temperature (35°C), number of foundress (>2 number), age of foundress (3-day-old) and Wolbachia. Through transmitted Wolbachia from Trichogramma embryophagum to Trichogramma dendrolimi, even the reproductive mode of T. dendrolimi was changed from gamogenesis to thelytoky. Our work verifies the sex ratio theory and implies that the potential effectiveness of Trichogramma spp. as a biological control agent can be further improved.

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“…Body size is strongly correlated with fitness in aphidiine parasitoids, especially in females (e.g. Kant et al ., ), and previous work has shown greater longevity of asexual than sexual females (Ameri et al ., ). We infer that asexual L. fabarum may use superparasitism behaviour to optimise host quality for their progeny.…”

Section: Discussionmentioning

confidence: 81%

An asexual strain of Lysiphlebus fabarum (Hymenoptera: Braconidae) gains fitness in superparasitised hosts, but a sexual strain pays costs

Rasekh

Michaud

Mohseni

et al. 2017

Ecological Entomology

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Abstract. 1. The fitness impacts of two levels of superparasitism were compared in a sexual and an asexual strain of Lysiphlebus fabarum (Marshall) developing in black bean aphids.2. Asexual females were larger than sexuals, had higher eggs loads, and better adult emergence in two of three treatments, but parasitised fewer available aphids in 24 h (80% fewer when foraging alone).3. Superparasitism resulted in wasps that were larger than those emerging from singly parasitised aphids, and asexual females had larger ovaries, without delayed development. In contrast, sexual wasps took about 2 days longer to develop in superparasitised hosts, and females had smaller ovaries with lower egg loads.4. The growth of host aphids bearing asexual larvae was not reduced relative to healthy aphids, except when heavily superparasitised, whereas sexual larvae reduced aphid growth in all treatments.5. Elimination of supernumerary larvae was virtually complete at 4.5 days after parasitism by sexual females, but no elimination occurred among asexual larvae. The evolution of diminished aggression in asexual larvae may be facilitated by greater genetic similarity, without necessarily leading to gregarious development, assuming the extended life of supernumeraries somehow improves survivor fitness.6. Sons of virgin sexual females developed faster than sons of mated females, implicating parental effects that slowed development of the latter.7. It is concluded that asexual females of this strain use superparasitism to improve host quality, and thus the fitness of their daughters, whereas females of the sexual strain prioritise offspring number.

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Body size and fitness relation in male and female Diaeretiella rapae

Cited by 26 publications

References 26 publications

The effect of host nutritional quality on multiple components ofTrichogramma brassicaefitness

The effect of host nutritional quality on multiple components ofTrichogramma brassicaefitness

Effect of some environmental and biological factors on reproductive characters of Trichogramma spp.

An asexual strain of Lysiphlebus fabarum (Hymenoptera: Braconidae) gains fitness in superparasitised hosts, but a sexual strain pays costs

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