Sentences with phrase «during the domestication of»

By Kraig Kraft The Search for the Origins of Chile Peppers Starts in Arizona As a graduate student studying crop evolution at U.C. Davis, I am focusing my work on describing the genetic changes that took place during the domestication of Capsicum annuum, a species that includes some of the most common varieties of chile peppers cultivated worldwide.

This means that by studying the effect of genetic changes during the domestication of dogs we can also learn about our own species» adaptations to the environment and related diseases.

Not exact matches

During the process of domestication, plants undergo changes in certain traits that make them more amenable to humans and agriculture such as larger seeds, larger fruits, a compact growth habit, and so on.

Much of what we know about how animals change appearance during domestication comes from a famous experiment in Siberia in the 1950s.

Pipes» study is an interesting example of what might have happened to dogs» brains during domestication, he said.

3D morphometric analysis of fossil canid skulls contradicts the suggested domestication of dogs during the late Paleolithic.

The barley genome sequence also enabled the identification of regions of the genome that have been vulnerable to genetic bottlenecking during domestication, knowledge that helps to guide breeders to optimize genetic diversity in their crop improvement efforts.

«Sheep life revolves around interacting with shepherds, other keepers and dogs, so knowledge of this important aspect of their environment should be favoured during the domestication process.»

Many of our ideas about domestication derive from Charles Darwin, whose ideas in turn were strongly influenced by British animal - breeding practices during the 19th century, a period when landowners vigorously pursued systematic livestock improvement.

However, the reshaping of the horse genome during their domestication also had significant negative impacts.

«This confirms previous findings that wild horses were used to restock the population of domesticated horses during the domestication process.

This new work on black rice helps explain the history of domestication of rice by ancient humans, during which they selected for desirable traits including grain color.

In 1959, biologists Dmitri Belyaev and Lyudmila Trut set out to do just that, by starting with a few dozen silver foxes from fox farms during the Soviet era and attempting to recreate the evolution of wolves into dogs in real time in order to witness the process of domestication.

«These associations support the hypothesis that Nosema escaped into wild populations from heavily infected commercial colonies, at least during the earlier years of bumble bee domestication in the U.S.,» she said.

Wolves were domesticated more than 15,000 years ago and it is widely assumed that the ability of domestic dogs to form close relationships with humans stems from changes during the domestication process.

The evidence that the SWEET4c gene was selected during domestication was discovered by the team of Jeff Ross - Ibarra at UC Davis, while comparing SWEET4 sequences from modern maize against its wild ancestor Teosinte.

Of the 125 genes undergoing positive selection during domestication, a subset is related to the differentiation, organization, and contraction of skeletal muscles, including ACTA1, C - SKI, MYBPC1, and delta - sarcoglycan (SGCDOf the 125 genes undergoing positive selection during domestication, a subset is related to the differentiation, organization, and contraction of skeletal muscles, including ACTA1, C - SKI, MYBPC1, and delta - sarcoglycan (SGCDof skeletal muscles, including ACTA1, C - SKI, MYBPC1, and delta - sarcoglycan (SGCD).

Duplication of fgfr1 permits Fgf signaling to serve as a target for selection during domestication.

This admixture could have occurred before domestication or during the early stages of the domestication process, following restocking from the wild as previously suggested (13, 32, 33).

Although this rock art gives us a better sense of how humans interacted with dogs during this time, it's possible that dogs were domesticated much earlier — possibly between 15,000 and 30,000 years ago — and the domestication process maybe have happened more than once.

Flink et al. (2014) typed the TSHR and BCDO2 loci in archaeological chicken samples from Europe, spanning the last 2,200 years, to further examine the hypothesis of selection during early domestication.

Several domestication events likely occurred during this time, although these may have occurred more at the instigation of the ever - adaptable cat than by any specific selective strategy of human residents.

The loss of genetic diversity in purebred dogs can be attributed to two major population bottleneck events: the first occurring during domestication; and the second arising from breed formation where the repeated use of popular sires, line breeding, breeding for specific phenotypic traits, and promotion of the breed barrier rule, contributed to overall loss in genetic variation [15 - 19].