Correlation of male genital filaments and female spermathecal ducts in New World sand flies of the Lutzomyia intermedia species complex (Diptera: Psychodidae, Phlebotominae)

Marcondes, Carlos Brisóla; Alexander, Bruce

doi:10.1590/s0074-02762003000500005

Cited by 8 publications

(4 citation statements)

References 22 publications

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“…Similar close relationships between male filaments and female ducts are reported in the Phlebotominae (Diptera: Psychodidae) by Marcondes & Alexander (2003). Carr (2005) has recently illustrated, under the title of LKMs, how in an auchenorrhynchan genus the aedeagus interdigitates with the valvulae of the female.…”

Section: Other Insectssupporting

confidence: 66%

“…Thus, in the genus Lygaeus (Heteroptera), female choice may take place, since the length of the male organ affects the success of the insemination (Tadler, 1999). The situation might be similar in some Auchenorrhyncha (Carr, 2005) and Diptera (Marcondes & Alexander, 2003). This may be a characteristic of insects that lack spermatophores (cf.…”

Section: Other Insectsmentioning

confidence: 99%

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The lock-and-key mechanisms of the internal genitalia of the Noctuidae (Lepidoptera): How are they selected for?

Mikkola¹

2008

Eur. J. Entomol.

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Section: Other Insectssupporting

confidence: 66%

Section: Other Insectsmentioning

confidence: 99%

The lock-and-key mechanisms of the internal genitalia of the Noctuidae (Lepidoptera): How are they selected for?

Mikkola¹

2008

Eur. J. Entomol.

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“…Similarly, Lutzomyia intermedia Lutz & Neiva and Lutzomyia neivai (Pinto) are sympatric sibling species in parts of Brazil that are both considered to be vectors of Leishmania. These two species show a signiÞcant difference in the ratio of male aedeagal Þlament and female spermathecal duct lengths (P Ͻ 0.01), which may contribute to their reproductive isolation (Marcondes and Alexander 2003). Hence, differences in spermathecal duct and aedeagal Þlament length among the members of closely related species in phlebotomine sand ßies indicate that these reproductive traits can evolve extremely rapidly and may contribute to reproductive isolation, leading to speciation.…”

Section: Key To Adult Females and Males Of Thementioning

confidence: 99%

A Taxonomic Reassessment of the <I>Phlebotomus argentipes</I> Species Complex (Diptera: Psychodidae: Phlebotominae)

Ilango¹

2010

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The taxonomic status of the sand fly Phlebotomus (Euphlebotomus) argentipes Annandale & Brunette 1908, which transmits Leishmania (Leishmania) donovani (Laveran & Mesnil 1903) in southern Asia, is reassessed, because variation in morphology, behavior, and distribution suggests it to be a complex of sibling species. The putative complex is composed of the nominotypical member Phlebotomus argentipes sensu stricto, Phlebotomus annandalei Sinton 1923 status revived and Phlebotomus glaucus Mitra & Roy 1953 new status. An allolectotype is designated for the female of P. argentipes as well as neotypes for the males of P. annandalei and P. glaucus. Morphological descriptions, illustrations, and keys are presented to allow identification of adult males and females. Based on female morphological characters, P. argentipes s.s., P. annandalei and P. glaucus can be distinguished from each other using principal component analysis. P. glaucus is widespread in India, occurring sympatrically with P. argentipes s.s. in L. donovani-endemic foci, whereas P. annandeli is peripatric to the type species in Chennai, southern India. "In copula" is a process of postcopulatory sexual selection occurring as correlated coevolution of male and female reproductive traits, which drives species isolation. This pattern has been implicated in reproductive isolation among the members of the P. argentipes complex. Further research on adult behavior and larval biology of the P. argentipes complex is needed to understand the epidemiology and control of visceral leishmaniasis.

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“…The related culicid flies (Nematocera) are also mostly monandrous (Thornhill & Alcock, 1983). However, other authors suggest that sperm competition may occur in a number of phlebotomine flies (Ilango & Lane, 2000 ;Marcondes & Alexander, 2003) since the length of the male genital filaments of many species is correlated with and exceeds the length of the female spermathecal ducts. In addition, promiscuous behaviour by females has been observed in L. longipalpis and L. migonei (see Jones, 2001;Rodrigo Soares, personal communication).…”

Section: (28 ) Isoptera (Uniramia Pterygota)mentioning

confidence: 99%

How the sperm lost its tail: the evolution of aflagellate sperm

Morrow

2004

Biological Reviews

103

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The typical sperm is comprised of a head, midpiece and flagellum. Around this theme there is an enormous diversity of form--giant sperm, multi-flagellate sperm and also sperm that lack flagella entirely. Explaining this diversity in sperm morphology is a challenging question that evolutionary biologists have only recently engaged in. Nonetheless, one of the selective forces identified as being an important factor in the evolution of sperm form is sperm competition, which occurs when the sperm of two or more males compete to fertilize a female's ova. In species with a truly monandrous mating system, the absence of sperm competition means that the selection pressure on males to produce motile sperm may be relaxed. Potentially aflagellate sperm are less costly to produce, both in terms of energy and time. Thus, selection may therefore favour the loss of the sperm flagellum and any other motile mechanisms in monandrous taxa. A review of the literature revealed that 36 taxonomic groups, from red algae to fish, were found independently to have evolved aflagellate sperm. I review what is known about the mating systems of each of these taxa and their nearest sister taxa. A sister-group analysis using this information provided weak evidence suggesting that the evolution of aflagellate sperm could be linked to the removal of selective pressures generated by sperm competition.

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Correlation of male genital filaments and female spermathecal ducts in New World sand flies of the Lutzomyia intermedia species complex (Diptera: Psychodidae, Phlebotominae)

Cited by 8 publications

References 22 publications

The lock-and-key mechanisms of the internal genitalia of the Noctuidae (Lepidoptera): How are they selected for?

The lock-and-key mechanisms of the internal genitalia of the Noctuidae (Lepidoptera): How are they selected for?

A Taxonomic Reassessment of the <I>Phlebotomus argentipes</I> Species Complex (Diptera: Psychodidae: Phlebotominae)

How the sperm lost its tail: the evolution of aflagellate sperm

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