Sentences with phrase «breed variation in»

Although there is individual and breed variation in the age of onset and the rate of disease progression, the disease eventually progresses to complete blindness in most dogs.

History: The Black Bear hamster was first discovered as a breed variation in 1985.

Unlike dogs, cats have almost no breed variation in the shape and conformation of their ear canals.

In addition, there seems to be some breed variation in how long it takes for housetraining to stick... toy breed dogs often take a while to be reliable because their bladders are so small, so have some extra patience if Princess is a tiny dog like a Yorkie or a Chihuahua.

Not exact matches

«A lack of genetic variation in rice has hindered efforts by conventional breeding programs to address iron levels.

Renaud, E.N.C; Lammerts van Bueren, E.T.; Myers, J. R; Paulo, M.J.; Eeuwijk, F.A.; Zhu, N. and Juvik, J.A. (2014) Variation in Broccoli Cultivar Phytochemical Content under Organic and Conventional Management Systems: Implications in Breeding for Nutrition.

Humans are selecting the plants to use in breeding because they have more useful variations than the other possible plants.

«Identifying which of these candidate genes actually causes variation in responses to cold snaps will give us the potential to understand whether evolution to climate change can occur in both wild and domesticated animals, allowing us to better predict which species or breeds will be «winners» and «losers» and to better mitigate the effects of anthropogenic climate change on a wide range of organisms from beneficial pollinators to invasive pests,» said Theodore Morgan an associate professor of evolutionary genetics in the Division of Biology at Kansas State University and senior author of the study.

«Thus, the use of small populations artificially bred for desired traits, such as smaller body size or coat color, may have led to an accumulation of harmful genetic variations in dogs.»

With this map of genetic variation in hand, the scientists could then estimate how big the population of passenger pigeons once was — typically, a small population will have less genetic variation than a larger one because it derives from a smaller pool of ancestors who bred successfully.

Thanks to the precise testing of Pm3 alleles, the best variations and combinations are identified and can then be used directly in traditional breeding by crossbreeding them into modern wheat varieties.

The study, conducted using fruit fly populations bred to model natural variations in human sleep patterns, provides new clues to how genes for sleep duration are linked to a wide variety of biological processes.

«Selective - breeding programmes may effectively reduce the capacity of corals to adapt to future changes in environmental conditions by narrowing genetic variation,» says David Miller, a coral biologist at James Cook University in Townsville.

The gene copies also hide natural variation in the wheat genome that could create opportunities to selectively breed plants with useful traits.

All told, the researchers identified 51 regions in the genome that contributed to physical variation among the breeds.

Co-author Heidi Parker, a geneticist at NHGRI, says that because humans initially bred dogs for specific traits — say, smaller body size or calm temperament — selection created a population «bottleneck» that narrowed the genetic variation in offspring, leaving them with just a few specific clusters of variable genetic regions.

«Small variations in breeding pools make for big differences in Yosemite toad use.»

«We can begin to understand the Y chromosome variation among male lineages in a cattle breed,» Liu said.

Natural variation exists in the levels of pectate lyase gene expression in wild relatives of cultivated tomato and these can be used for conventional breeding purposes.

We are particularly interested in assessing whether the majority of phenotypic variation among breed - affiliated dogs is a consequence of QTLs of large effect or whether much of the variation is attributable to many QTLs of modest or small effect.

The rapid genetic drift between isolated breeds (pairwise FST of 25 % — 30 % among any given set of breeds with very few pairs of breeds having significantly smaller FST) enables efficient mapping of the genomic regions underlying variation, even in some cases with un-genotyped collections such as museum specimens.

This methodology contrasts with scans for outlier genomic regions among modern breeds (35), which can, at best, identify genes that are specific to breeds, in the absence of knowledge of the predomesticated genetic background and sources of variation.

These resources comprise a «rice diversity research platform» that is widely used the international rice research community to understand the genetic basis of complex traits, to investigate molecular mechanisms involved in key forms of stress tolerance, and to efficiently utilize natural variation to breed highly productive rice varieties for the future that are more nutritious, resource - use efficient, and stress tolerant than those we currently grow.

Evidence for the appearance of breed variation is found in several European Upper Paleolithic sites.

Well, new research suggests that the trait is actually the result of a genetic variation that's particularly common in the breed.

The paucity of single nucleotide diversity among breeds is consistent with other studies (29 — 32) and stands in stark contrast to the abundance of coding repeat variation we found in these same genes known to be involved in the developmental processes under selection in the radiation in dog breed morphologies.

Bear in mind, variations will be seen in these differences due to the breed and age of chickens, their diet (grass, insects, and feed) and the season.

UK - bred Taylor - Johnson delivers a variation on the all - in, piercing - eyed intensity he's brought to «Nocturnal Animals» and «Kick - Ass,» so expect his twangy, resourceful sharpshooter to hold similar interest or vexation.

Specification points covered are: Paper 2 Topic 1 (4.5 - homeostasis and response) 4.5.1 - Homeostasis (B5.1 lesson) 4.5.3.2 - Control of blood glucose concentration (B5.1 lesson) 4.5.2.1 - Structure and function (B5.2 lesson) Required practical 7 - plan and carry out an investigation into the effect of a factor on human reaction time (B5.2 lesson) 4.5.3.1 - Human endocrine system (B5.6 lesson) 4.5.3.4 - Hormones in human reproduction (B5.10 lesson) 4.5.3.5 - Contraception (B5.11 lesson) 4.5.3.6 - The use of hormones to treat infertility (HT only)(B5.12 lesson) 4.5.3.7 - Negative feedback (HT only)(B5.13 lesson) Paper 2 topic 2 (4.6 - Inheritance, variation and evolution) 4.6.1.1 - sexual and asexual reproduction (B6.1 lesson) 4.6.1.2 - Meiosis (B6.1 lesson) 4.6.1.4 - DNA and the genome (B6.3 lesson) 4.6.1.6 - Genetic inheritance (B6.5 lesson) 4.6.1.7 - Inherited disorders (B6.6 lesson) 4.6.1.8 - Sex determination (B6.5 lesson) 4.6.2.1 - Variation (B6.9 lesson) 4.6.2.2 - Evolution (B6.10 lesson) 4.6.2.3 - Selective breeding (B6.11 lesson) 4.6.2.4 - Genetic engineering (B6.11 lesson) 4.6.3.4 - Evidence for evolution (B6.16 lesson) 4.6.3.5 - Fossils (B6.16 lesson) 4.6.3.6 - Extinction (B6.16 lesson) 4.6.3.7 - Resistant bacteria (B6.17 lesson) 4.6.4.1 - classification of living organisms (B6.18 lesson) Paper 2 topic 3 (4.7 - Ecology 4.7.1.1 - Communities (B7.1 lesson) 4.7.1.2 - Abiotic factors (B7.1 lesson) 4.7.1.3 - Biotic factors (B7.1 lesson) 4.7.1.4 — Adaptations (B7.2 lesson) 4.7.2.1 - Levels of organisation (feeding relationships + predator - prey cycles)(B7.3 lesson) 4.7.2.1 - Levels of organisation (required practical 9 - population sizes)(B7.4 lesson) 4.7.2.2 - How materials are cycled (B7.5 lesson) 4.7.3.1 - Biodiversity (B7.7 lesson) 4.7.3.6 - Maintaining Biodiversity (B7.7 lesson) 4.7.3.2 - Waste management (B7.9 lesson) 4.7.3.3 - Land use (B7.9 lesson) 4.7.3.4 - Deforestation (B7.9 lesson) 4.7.3.5 - Global warming (B7.variation and evolution) 4.6.1.1 - sexual and asexual reproduction (B6.1 lesson) 4.6.1.2 - Meiosis (B6.1 lesson) 4.6.1.4 - DNA and the genome (B6.3 lesson) 4.6.1.6 - Genetic inheritance (B6.5 lesson) 4.6.1.7 - Inherited disorders (B6.6 lesson) 4.6.1.8 - Sex determination (B6.5 lesson) 4.6.2.1 - Variation (B6.9 lesson) 4.6.2.2 - Evolution (B6.10 lesson) 4.6.2.3 - Selective breeding (B6.11 lesson) 4.6.2.4 - Genetic engineering (B6.11 lesson) 4.6.3.4 - Evidence for evolution (B6.16 lesson) 4.6.3.5 - Fossils (B6.16 lesson) 4.6.3.6 - Extinction (B6.16 lesson) 4.6.3.7 - Resistant bacteria (B6.17 lesson) 4.6.4.1 - classification of living organisms (B6.18 lesson) Paper 2 topic 3 (4.7 - Ecology 4.7.1.1 - Communities (B7.1 lesson) 4.7.1.2 - Abiotic factors (B7.1 lesson) 4.7.1.3 - Biotic factors (B7.1 lesson) 4.7.1.4 — Adaptations (B7.2 lesson) 4.7.2.1 - Levels of organisation (feeding relationships + predator - prey cycles)(B7.3 lesson) 4.7.2.1 - Levels of organisation (required practical 9 - population sizes)(B7.4 lesson) 4.7.2.2 - How materials are cycled (B7.5 lesson) 4.7.3.1 - Biodiversity (B7.7 lesson) 4.7.3.6 - Maintaining Biodiversity (B7.7 lesson) 4.7.3.2 - Waste management (B7.9 lesson) 4.7.3.3 - Land use (B7.9 lesson) 4.7.3.4 - Deforestation (B7.9 lesson) 4.7.3.5 - Global warming (B7.Variation (B6.9 lesson) 4.6.2.2 - Evolution (B6.10 lesson) 4.6.2.3 - Selective breeding (B6.11 lesson) 4.6.2.4 - Genetic engineering (B6.11 lesson) 4.6.3.4 - Evidence for evolution (B6.16 lesson) 4.6.3.5 - Fossils (B6.16 lesson) 4.6.3.6 - Extinction (B6.16 lesson) 4.6.3.7 - Resistant bacteria (B6.17 lesson) 4.6.4.1 - classification of living organisms (B6.18 lesson) Paper 2 topic 3 (4.7 - Ecology 4.7.1.1 - Communities (B7.1 lesson) 4.7.1.2 - Abiotic factors (B7.1 lesson) 4.7.1.3 - Biotic factors (B7.1 lesson) 4.7.1.4 — Adaptations (B7.2 lesson) 4.7.2.1 - Levels of organisation (feeding relationships + predator - prey cycles)(B7.3 lesson) 4.7.2.1 - Levels of organisation (required practical 9 - population sizes)(B7.4 lesson) 4.7.2.2 - How materials are cycled (B7.5 lesson) 4.7.3.1 - Biodiversity (B7.7 lesson) 4.7.3.6 - Maintaining Biodiversity (B7.7 lesson) 4.7.3.2 - Waste management (B7.9 lesson) 4.7.3.3 - Land use (B7.9 lesson) 4.7.3.4 - Deforestation (B7.9 lesson) 4.7.3.5 - Global warming (B7.9 lesson)

Common to all variations of the breed is an unmistakable sound that didn't change dramatically when the air - cooled boxer was replaced by the water - cooled engine in late 1997; a less - than - ideal weight distribution combined with a high polar moment of inertia; compromised packaging with little room for luggage; and a driving experience dominated by phenomenal grip and traction — while it lasted.

Past masters like the Nissan GT - R, the Chevrolet Corvette ZR1, the Jaguar XKR - S, and the Aston Martin DBS would arguably also fit in, but for clarity and compatibility we decided to concentrate on the newest and most advanced variations of the breed.

Breeding can be another reason for variation in form or recombination.

There are variations within the different cat breeds that may result in a pet quality cat vs. a show quality cat.

A variation in the breed, defined by a specific breeder as the Razor Edge pit bull, has since become its own bloodline and is now distinguishable from the typical American pit bull terriers by certain characteristics.

Because of the huge variation in the breed, some will make happier pets and others will make happier working dogs.

Since there is so much variation between breeds - some breeds have webbing on their paws to make them better in the water - it is not a bad idea to ask your vet for recommendations.

Of all of the pit bull breeds, the American bulldog is the largest, although there is a lot of variation in the sizes of these pooches.

Other color variations are not accepted in the AKC show ring, and are usually a sign of another breed being mixed in.

Due to good acceptance and demand of Rottweiler, there have been a lot of new twists and variations to the breed in the recent years.

Parti Pomeranian dogs will often be in a picture displaying the different coat variations of the breed.

The temperament of Black mastiffs varies depending on the location and variation in the breed.

This breed needs a lot of exercise and variation in these in order to provide mental stimulation as well.

To further make their case, the LRC notes that the first Labrador retriever breeder who started regularly producing the silver colored variations was also a breeder of purebred Weimaraners, a breed in which the dd gene expression is always present and parents can ONLY pass down a d allele.

These other - color breeders simply appreciated the beauty and variation that these new colors could provide in this newly created breed back in the day.

To add to the confusion, the name «Staffordshire Terrier» was changed to «American Staffordshire Terrier» in the 1970's when the AKC decided that the pit bulls still being bred in England had enough variation in type to warrant being called a different «breed».

The truth is, there are many different types and variations of Collie breeds, with the origin being located in Scotland and Northern England.

Apparently, certain traits are significantly more or less appealing to adopters as there is substantial variation in adoption rates by breed type.

Each of the noble houses bred Chins to their own standards, resulting in many variations in the breed.

There is some variation in brain size among different dog breeds, but that is mostly due to variation in body size.

The Kromfohrlander breed comes in two different coat variations — smooth and wirehaired.