A genetic basis for love at first sight

A multinational team of researchers has discovered that at the genetic level, some males and females are more compatible than others, and that this compatibility plays an important role in mate selection and mating outcomes.

The study, published in GENETICS, details how a team of scientists from the United States and Australia discovered that before mating, female fruit flies experience what amounts to “genetic priming,” making them more likely to mate with certain males over others.

“Our research helps to shed light on the complex biochemistry involved in mate selection and reproduction,” said researcher Mariana Wolfner, from Cornell University. “These findings may lead to ways to curb unwanted insect populations by activating or deactivating genes that play a role in female mating decisions.”

To reach their conclusions, the scientists mated two different strains of fruit fly females to males either from their own strain or to males from the other strain. They noted the males with which females of each strain tended to mate and then examined whether the females showed differences in behavior soon after mating and in reproduction-related activities, such as how many offspring were produced and how many sperm were stored.

They also examined the females’ RNA to compare the genes expressed in females mated to males of different strains. They found that despite observed differences in mating behaviors and reproduction activities in females mated to different strains of males, there were only negligible mating-dependent differences in gene expression between the groups. This suggests that genetic changes involved in mate choice and reproduction were in place before mating began.

“It appears that females really do care about the character of their consorts,” said Mark Johnston, Genetics Editor-in-Chief, “but they may not have as much control over our choice of mates as they’d like to think.”

Related:
Game theory shows why you can’t hurry love
Love – Just A Basic Mammalian Response

Source: Federation of American Societies for Experimental Biology

 

, ,

Comments are closed.

US 1903-A3 SPRINGFIELD RIFLE FRONT SIGHT COVER picture

US 1903-A3 SPRINGFIELD RIFLE FRONT SIGHT COVER

$9.95



M1903A3 Springfield Front Sight Blade with Pin 03A3 picture

M1903A3 Springfield Front Sight Blade with Pin 03A3

$16.00



5-ENFIELD RIFLE FRONT SIGHT BLADES-FIT No1 MK III-No.4 MKI- P14 & P17-MANY SIZES picture

5-ENFIELD RIFLE FRONT SIGHT BLADES-FIT No1 MK III-No.4 MKI- P14 & P17-MANY SIZES

$4.50



M1 CARBINE REAR SIGHT REMOVAL TOOL  For USGI CARBINE  picture

M1 CARBINE REAR SIGHT REMOVAL TOOL For USGI CARBINE

$59.00



Swedish mauser sight hood 6.5x55 M96 m38 rifle grade 1 picture

Swedish mauser sight hood 6.5x55 M96 m38 rifle grade 1

$19.99



Aimpoint Carry Handle Sight Mount Gooseneck with C Clamp Eotech  Good Condition picture

Aimpoint Carry Handle Sight Mount Gooseneck with C Clamp Eotech Good Condition

$29.95



SKS REAR SIGHT AND SPRING.7.62x39.Original. NEW UNISSUED. picture

SKS REAR SIGHT AND SPRING.7.62x39.Original. NEW UNISSUED.

$25.00



U.S.M.C. 1903 A3 Springfield Front Sight Hood EXACT Reproduction USA Made USMC picture

U.S.M.C. 1903 A3 Springfield Front Sight Hood EXACT Reproduction USA Made USMC

$80.00



Upper Grindelwald Glacier Switzerland Swiss Mountain Men Photo Stereoview A159 picture

Upper Grindelwald Glacier Switzerland Swiss Mountain Men Photo Stereoview A159

$13.95



Pichincha Volcano Mountain Peak Smoking Crater Ecuador Photo Stereoview A242 picture

Pichincha Volcano Mountain Peak Smoking Crater Ecuador Photo Stereoview A242

$24.95



Powered by WordPress. Designed by WooThemes