Mating alters the rate of development of ovarioles in the ladybird, Propylea dissecta (Coleoptera: Coccinellidae)

Shahid, Mhd; Siddiqui, Arshi; Omkar,; Mishra, Geetanjali

doi:10.14411/eje.2016.005

Cited by 15 publications

(8 citation statements)

References 71 publications

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“…Similar observations were recorded earlier in M. Sexmaculatus by Chaudhary et al (2015) . This increase in copula duration might be for: (1) the sufficient number of sperm transferred to fertilized more eggs as the amount of sperm transfer is directly proportional to the copula duration ( Simmons and Siva-Jothy, 1998 , Simmons, 2001 , Engqvist, 2007 , Himuro and Fujisaki, 2015 ), (2) male partner of many insects transfer substances in their ejaculate during copulation that play important role in induction of oviposition in female partner ( Riemann et al, 1967 ), (3) during copulation some seminal fluid proteins are transferred which are known to accelerate ovarian development and egg production in some species ( Shahid et al, 2016 ), and provide fitness benefits to both the mating partners ( Savalli and Fox, 1999 ).…”

Section: Discussionmentioning

confidence: 99%

Reproductive success in Zygogramma bicolorata: A role of post-insemination association of male and female

Bhaisare

Paraste

Kaushik

et al. 2021

Saudi Journal of Biological Sciences

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Reproductive success is attained by various mechanisms in insects. Prolonged post insemination association is one such mechanism to increase the reproductive success. The present study was conducted to assess the role of post insemination association of mating partners on reproductive performance in Chrysomelidae beetle, Zygogramma bicolorata Pallister. The matings were disrupted at different time intervals and fecundity and percent egg viability of the females were recorded. In addition, the mounting attempts, mating attempts, time to commencement of mating and latent period were also recorded. It was hypothesized that: (1) the mounting and mating attempts would not exist, (2) copulation duration, would not affect the reproductive performance, and (3) the beetle would not exhibit the mate guarding behaviour. Interestingly, results revealed that 6.00 ± 1.3 and 6.59 ± 0.93 mounting and mating attempts are needed to establish successful mating. The results revealed that males improved their percent egg viability with a mating duration ranging from nearly 30–50 min. While fecundity increased with a mating duration of above 30 min and up to a duration of 60 min. This result concluded that males of this beetle display post copulatory mate guarding behaviour after 60 min in which male rides on female’s back with his aedeagus inserted in the female genital tract.

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Section: Discussionmentioning

confidence: 99%

Reproductive success in Zygogramma bicolorata: A role of post-insemination association of male and female

Bhaisare

Paraste

Kaushik

et al. 2021

Saudi Journal of Biological Sciences

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“…Male insects can also release mineral compounds, water, ions and other allomones in their ejaculates during copulation (Michaud et al, 2013), as well as secondary compounds that are precursors of prostaglandins (Worthington et al, 2015). These compounds may exert various functions in insect physiology such as acting as oviposition stimulants, speeding the development of ovarioles and egg maturation in females (Shahid et al, 2016), or inhibiting new copulations to increase paternity certainty (Michaud et al, 2013). The latter may not apply to T. notata because it can mate multiple times along the day with different males.…”

Section: Discussionmentioning

confidence: 99%

Histology of the spermateca and stored sperm of Tenuisvalvae notata (Coleoptera: Coccinellidae)

et al. 2018

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The predatory ladybird beetle Tenuisvalvae notata (Coleoptera: Coccinellidae) (Mulsant) is a polygamous species and its morphology, as well as the storage capacity of seminal fluid in the spermatheca, may affect its reproductive performance. Thus, the present study evaluates the spermatheca morphology of virgin and mated T. notata females using light and scanning microscopy. The results show that the spermatheca of T. notata is kidney shaped and consists only of the receptacle and spermathecal duct, being morphologically similar in virgin and mated females. There is no secretion in the spermathecae of virgin females and, in mated females, only once it was not possible to observe the presence of spermatozoa. By contrast, females mate multiple times it is possible to observe spermatozoa in the lumen of the spermatheca surrounding the secreted material. Polygamy in T. notata might be related to the maintenance of viable spermatozoa in the spermatheca, in which case the female would prefer to copulate more times during its adult life than to store spermatozoa for a longer period of time.

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“…The pre-oviposition period was found to decrease with an increase in copula duration suggesting that prolonging copula triggers females to accelerate egg production. Mating and seminal fluid proteins in particular, are known to accelerate ovarian development and egg production in some species (Shahid et al, 2016), and thus could provide fitness benefits to males and females (Savalli & Fox, 1999). It is thought that a longer copula duration permits the transfer of seminal fluid proteins even after sperm has been transferred, probably resulting in a decreased pre- oviposition period (Garcia-Gonzalez & Gomendio, 2004;Simmons, 2011).…”

Section: Discussionmentioning

confidence: 99%

Prolonged copula duration in the parthenium beetle, Zygogramma bicolorata: an alternative male tactic to amplify sperm transfer, reproductive attributes, and paternity outcomes

Afaq

Omkar

2017

Entomologia Exp Applicata

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Male traits are expected to evolve on the basis that they help maximize reproductive success. Prolonged copula duration is a commonly observed trait and this may sometimes be an adaptive male tactic that results in increased paternity against rival males. This study evaluated direct and indirect influences of prolonged copula duration on reproduction and offspring development in the parthenium beetle, Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae). Prolonged copula duration was correlated with a reduction in the time until oviposition and with increased fecundity in female beetles. Furthermore, extended copula duration was correlated with increased offspring survival and reduced offspring development times. Thus, there appear to be both direct and indirect benefits associated with prolonged copula in the parthenium beetle (i.e., increased adult reproductive performance and improved offspring fitness). Possible explanations for these reproductive benefits may be that a longer copula increases the availability of sperm for females and seminal fluid may boost maternal protein reserves which can then be invested in higher quality of offspring.

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Mating alters the rate of development of ovarioles in the ladybird, Propylea dissecta (Coleoptera: Coccinellidae)

Cited by 15 publications

References 71 publications

Reproductive success in Zygogramma bicolorata: A role of post-insemination association of male and female

Reproductive success in Zygogramma bicolorata: A role of post-insemination association of male and female

Histology of the spermateca and stored sperm of Tenuisvalvae notata (Coleoptera: Coccinellidae)

Prolonged copula duration in the parthenium beetle, Zygogramma bicolorata: an alternative male tactic to amplify sperm transfer, reproductive attributes, and paternity outcomes

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