Sentences with word «supergene»

Researchers have mapped supergenes in butterflies, sparrows, ants and a few other species in recent years, but Jiggins expects that the phenomenon is relatively uncommon.

Some 500,000 years ago, portions of the inverted supergene flipped back to the correct orientation, creating a second version.

(1) Ore tonnes mined for the three months ended March 31, 2017 included 594,000 tonnes of primary ore (Q1 2016 — 605,000) and 57,000 tonnes of supergene ore (Q1 2016 — 732,000).

Offspring that inherit two copies of the inverted supergene die, thanks to disruption of both copies of a crucial gene.

The satellite supergene, however, carries mutations that disrupt the MC1R gene, which is involved in hair and skin colour in many animals.

That's where this evolutionary story gets really cool: The satellite and faeder males actually only have one copy of this modified supergene.

Genetic partners in crime: Evolution of an ultraselfish supergene that specializes in sperm sabotage.

Faeders possess one copy of the original inverted supergene, satellite males have one copy of the newer switched - back version, and independents lack either version.

The inversion of this «supergene» region would have protected the genes within it from shuffling between each generation.

The teams are yet to identify every gene contained within this supergene region, but have so far found a gene involved in colouring, which could explain differences in plumage, as well as genes involved in processing sex hormones.

A rare event allowed the supergene to swap part of its DNA back with the original, un-inverted region, forming this inbetween type of male.

«They've unlocked a whole new mechanism for how a supergene can determine something as complex as behavior.»

This «supergene» takes up a large chunk of what may be the first known social chromosome, analogous to the chromosomes that determine sex in humans.

Male ruff sandpipers come in three types, each with its own bizarre mating strategy, thanks to a supergene created 3.8 million years ago

Do I have a supergene deep inside me to fend off heavy metals?

But the ruff's supergene was born when a long stretch of DNA inverted itself some 3.8 million years ago.

The supergene concept was first proposed in the early twentieth century to explain why sets of coloration genes seemed to be inherited in an all - or - nothing fashion in some insects — but no supergenes were found.

A long stretch of DNA called a supergene explains the variety of bizarre tactics that a wading bird species deploys to win mates, a pair of genome - sequencing studies concludes.

Instead, a supergene 4.5 million DNA letters long and composed of 125 individual genes seems responsible for the peculiar behaviour of ruffs, report teams led by Burke and Leif Andersson, an evolutionary geneticist at Uppsala University in Sweden, in Nature Genetics.

Spectacular variation Genetic alterations that have accrued within the supergene in the last 3.8 million years may explain why the ruff forms behave and look so differently.

But the potentially deadly downside of these supergene mutations in birds keep independent males the most common morph.

These three distinct males, each with their own coloring and behavioral quirks, have different versions of one «supergene» — a region of around 100 genes that come bundled together as a package deal.

But the supergene cluster that determines what morph a bird will be also contains genes that control plumage, explaining why behavior and appearance are affected in one fell swoop.

Both research teams plan on studying the individual genes inside the supergene cluster in the hopes of determining which mutations are related to the color and behavioral changes we can see in the wild.

Having two copies would be fatal — probably because of the way the supergene affects the birds» metabolisms.

The «supergene» contains five genes that have a role in the metabolism of steroid hormones.

The chromosomal rearrangement (an inversion) has resulted in a «supergene» comprising a block of about 90 genes.

Further research is needed to clarify the generality and interdependencies of the different proposed mechanisms (supergenes, pleiotropy based on hormones or neural crest cells).

This revealed that both Satellite and Faeder males carry a «supergene» which is not a gene with superpower but a cluster of about 90 genes kept together by a chromosomal inversion which means that there is no genetic exchange between the three different variants.

The Satellite and Faeder male morphs are the result of an evolutionary process over million of years and involve many genetic changes among the 90 genes in this «supergene».