Abstract:
OBJECTIVES:The objectives of this study are to describe genetic correlations between dental dimensions in a platyrrhine primate, to assess whether the brown-mantled tamarin dentition exhibits genetic modularity by tooth type, and to discuss the relationship between body size reduction and the genetic architecture of dental traits. MATERIALS AND METHODS:Genetic correlations were estimated for linear dental measurements, estimated crown areas, and measures of relative premolar and molar size from 302 individuals, using a pedigree of 386 individuals, with maximum likelihood variance decomposition in SOLAR. RESULTS:Genetic correlation estimates indicate strong genetic integration in the dentition of brown-mantled tamarins, with little evidence of modularity by tooth type, within and between the maxilla and mandible. The relative molar size variable hypothesized to be genetically patterned in baboons is not significantly heritable, and relative premolar size does not meet the criteria to be considered genetically patterned in this population. DISCUSSION:These results demonstrate variation in the pattern of genetic correlations between dental dimensions in primates, providing evidence of evolution of the genetic architecture in the callitrichine lineage. Genetic integration of dental dimensions without modularity by tooth type, as demonstrated here, is expected to constrain dental evolution in ways that modularity would not. The role of body size reduction in the callitrichine lineage in the evolution of the genetic architecture of the dentition is discussed. Quantitative genetic analyses of dental dimensions in more primate populations will provide greater evidence of variation and evolution in the genetic architecture underlying primate dental morphology.
journal_name
Am J Phys Anthropoljournal_title
American journal of physical anthropologyauthors
Hardin AMdoi
10.1002/ajpa.23861subject
Has Abstractpub_date
2019-07-01 00:00:00pages
557-566issue
3eissn
0002-9483issn
1096-8644journal_volume
169pub_type
杂志文章abstract::On the basis of new examination of ancient DNA and craniometric analyses, Neolithic dispersal in Central Europe has been recently explained as reflecting colonization or at least a major influx of near eastern farmers. Given the fact that Neolithic dispersal in Central Europe was very rapid and extended into a large a...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:2011-09-01 00:00:00
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journal_title:American journal of physical anthropology
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更新日期:1995-12-01 00:00:00
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journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
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更新日期:1978-08-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
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更新日期:1995-04-01 00:00:00
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journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
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pub_type: 杂志文章
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更新日期:1984-10-01 00:00:00
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pub_type: 历史文章,杂志文章
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pub_type: 杂志文章
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
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更新日期:1997-07-01 00:00:00
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更新日期:2001-04-01 00:00:00
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pub_type: 历史文章,杂志文章
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更新日期:1989-08-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.23764
更新日期:2019-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-02-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330820306
更新日期:1990-07-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8644(199611)101:3<333::AID-AJPA
更新日期:1996-11-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.1330760205
更新日期:1988-06-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:1985-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2006-09-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:2008-10-01 00:00:00
abstract:OBJECTIVES:The higher primate scapula has been subject to many explanations of the putative "adaptive value" of its individual traits. However, the shift from the bone's position in above branch quadrupeds to its more posterolateral position in recent hominoids obviously required fundamental changes to its general form...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.21184
更新日期:2009-01-01 00:00:00
abstract::The Miles system of ageing, based upon analysis of the rate of molar wear, was evaluated using the available dental sample from Tepe Hissar, Iran. The independently estimated ages for the mandibles and maxillae of the same individuals were found to be highly correlated (r = 0.87, p less than 0.001). Ages of a subsampl...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330490216
更新日期:1978-08-01 00:00:00
abstract::The Finnish gene pool derives primarily from a relatively homogeneous Finno-Ugric population established during the Iron Age (100 B.C.-800 A.D.) in the southwest and southeast of Finland. Gene flow from Sweden to the southwest coastal areas, dating from prehistoric times, as well as the patterns of settlement and migr...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
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更新日期:1976-03-01 00:00:00
abstract::Early American crania show a different morphological pattern from the one shared by late Native Americans. Although the origin of the diachronic morphological diversity seen on the continents is still debated, the distinct morphology of early Americans is well documented and widely dispersed. This morphology has been ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.21425
更新日期:2011-03-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330430217
更新日期:1975-09-01 00:00:00
abstract::The movement of humans into the Americas remains a major topic of debate among scientific disciplines. Central to this discussion is ascertaining the timing and migratory routes of the earliest colonizers, in addition to understanding their ancestry. Molecular studies have recently argued that the colonizing populatio...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
doi:10.1002/ajpa.22154
更新日期:2012-12-01 00:00:00