A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
previous item
|
next item
| Citation |
- Permanent Link:
- https://digital.lib.usf.edu/SFS0069608/00001
Material Information
- Title:
- A biological switching valve evolved in the female of a sex-role reversed cave insect to receive multiple seminal packages
- Series Title:
- Evolutionary Biology
- Creator:
- Yoshizawa, Kazunori et al
- Publisher:
- eLIFE
- Publication Date:
- 2018-10-16
- Language:
- English
Subjects
- Subjects / Keywords:
- Evolution ( local )
Sexual Selection ( local )
Novelty ( local )
Biomechanics ( local )
Psocodea ( local )
- Genre:
- serial ( sobekcm )
Notes
- Abstract:
- We report a functional switching valve within the female genitalia of the Brazilian cave insect Neotrogla. The valve complex is composed of two plate-like sclerites, a closure element, and in-and-outflow canals. Females have a penis-like intromittent organ to coercively anchor males and obtain voluminous semen. The semen is packed in a capsule, whose formation is initiated by seminal injection. It is not only used for fertilization but also consumed by the female as nutrition. The valve complex has two slots for insemination so that Neotrogla can continue mating while the first slot is occupied. In conjunction with the female penis, this switching valve is a morphological novelty enabling females to compete for seminal gifts in their nutrient-poor cave habitats through long copulation times and multiple seminal injections. The evolution of this switching valve may have been a prerequisite for the reversal of the intromittent organ in Neotrogla.
- Original Version:
- Evolutionary Biology, Vol. 7 (2018-10-16).
Record Information
- Source Institution:
- University of South Florida Library
- Holding Location:
- University of South Florida
- Rights Management:
 This item is licensed with the Creative Commons Attribution License. This license lets others distribute, remix, tweak, and build upon this work, even commercially, as long as they credit the author for the original creation.- Resource Identifier:
- K26-05200 ( USFLDC: LOCAL DOI )
k26.5200 ( USFLDC: LOCAL Handle )
Postcard Information
- Format:
- serial
|
| Downloads |
This item is only available as the following downloads:
|
printinsert_linkshareget_appmore_horiz | |
Download Options
close
No images or PDF downloads are available for this resource.
Cite this
item
close
APA
Cras ut cursus ante, a fringilla nunc. Mauris lorem nunc, cursus sit amet enim ac, vehicula vestibulum mi. Mauris viverra nisl vel enim faucibus porta. Praesent sit amet ornare diam, non finibus nulla.
MLA
Cras efficitur magna et sapien varius, luctus ullamcorper dolor convallis. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce sit amet justo ut erat laoreet congue sed a ante.
CHICAGO
Phasellus ornare in augue eu imperdiet. Donec malesuada sapien ante, at vehicula orci tempor molestie. Proin vitae urna elit. Pellentesque vitae nisi et diam euismod malesuada aliquet non erat.
WIKIPEDIA
Nunc fringilla dolor ut dictum placerat. Proin ac neque rutrum, consectetur ligula id, laoreet ligula. Nulla lorem massa, consectetur vitae consequat in, lobortis at dolor. Nunc sed leo odio.
