Exam 2 PPTs - 7 Flashcards
Dog domestication - what is known:
- dogs were the first domesticated species and the only animal known to enter into domestic relationship with people during the …
- the specific wolf population from which dogs derived appears to be …
- genetic and archaeological evidence from modern and ancient dogs and wolves demonstrates that dog domestication took place in …
Pleistocene;
extinct;
Eurasia
Dog domestication - unknown:
- the … under which the relationship between humans and dogs began
- the time frame, and the number and location(s) of potential …
- the earliest generally accepted dog dates to about …
circumstances;
independent domestication regions;
15,000 years ago
Dog domestication - unknown:
- claims for the existence of domestic dogs as early as 40ka have been made on the basis of: …, …, …, … assessments of ancient canid remains
morphological;
isotopic;
genetic;
contextual
Dog domestication - unknown:
- none of these potential domestication markers is fail-safe, since wolves and early domesticated dogs can b …
difficult to distinguish from each other
Dog domestication:
- dogs have assisted humans with … and …, guarding … and …, and played crucial roles in …
hunting;
livestock management;
house; field;
major wars
Dog domestication:
- from … to production of … and …
- there are more than 350 distinct breeds
companionship;
fur;
meat
- analysed more than 48,000 single nucleotide polymorphisms (SNPs)
- 912 dogs from 85 breeds
- 225 … (the ancestor of the domestic dog) from 11 globally distributed populations
grey wolves
Genes under selection:
- genes that have been implicated in … and/or … in mouse or human studies
- possible selection in a gene responsible for Williams-Beuren syndrome in humans, which is characterized by … traits such as …
memory formation;
behavioural sensitization;
social;
exceptional gregariousness
Genes under selection:
- within dog breeds, nearly all dogs are assigned to a …
- this result reflects the limited number of …, … and … characteristic of many breeds
breed of origin;
founders;
inbreeding;
small effective population size
Dog domestication and the dual dispersal of people and dogs into the Americas:
- the spatiotemporal patterning of specific dog mitochondrial lineages are often correlated with the known dispersal of human groups at different times and places
- dogs dispersed out of the … along with …
- the first dogs to arrive in New Zealand did so with newly arriving …
- people and dogs also dispersed together in the ….
Near East;
farmers;
Polynesians;
North American Arctic
Dog domestication and the dual dispersal of people and dogs into the Americas:
- dogs accompanied the early human groups who moved from … across the … into the Americas
- the archaeologically documented presence of dogs in the in the Americas by at least …
northeast Asia;
Bering Land Bridge (Beringia);
10,000 ya