Genetic structure and diversity identify incipient domestication of Piquiá [Caryocar villosum (Aubl.) pers.] along the lower Tapajós River, Brazilian Amazonia
Genetic structure and diversity identify incipient domestication of Piquiá [Caryocar villosum (Aubl.) pers.] along the lower Tapajós River, Brazilian Amazonia
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遗传结构和多样性确定了 Piquiá [Caryocar villosum (Aubl.) pers.] 沿着巴西亚马逊流域塔帕伊斯河下游的早期驯化
DOI:
10.1007/s10722-020-01078-0
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发表时间:
2021
影响因子:
2
通讯作者:
Francisconi A
中科院分区:
文献类型:
--
作者:
Francisconi A
In Amazonia there are at least 85 arboreal species with domesticated populations, among which piquiá [Caryocar villosum(Aubl.) Pers.] is widely distributed. In some regions, there is ethnobotanical evidence of domestication for its fruit. To understand more about piquiá domestication, we evaluated genetic diversity and structure of two regions, sampling 130 trees in forests and homegardens (92 trees in the Tapajós National Forest and 38 in the Rio Ouro Preto Extractive Reserve), using seven microsatellite markers. In Tapajós, piquiá trees form large aggregations near archaeological sites, while in Ouro Preto the aggregations are smaller. The Tapajós presented higher effective number of alleles, allelic richness and expected heterozygosity, with lower observed heterozygosity and, consequently, a higher fixation index and lower apparent outcrossing rate. Genetic structure exists between regions, forming four probable groups: one that corresponds mainly to Ouro Preto and the others in the Tapajós. When the Tapajós was analyzed separately, we found four genetic groups that do not correspond to homegarden and forest systems. In the homegardens we found lower number of effective alleles, allelic richness and observed heterozygosity. These subtle differences in genetic diversity between homegarden and forest trees identify piquiá’s incipient domestication, agreeing with ethnobotanical evidence. The piquiá stands near archaeological sites and the existence of four genetic groups suggest that piquiá was introduced into the Tapajós during pre-Columbian times from at least three different sources. Trail registration numbers: SisBio—58609-1, from August 5, 2017; SisGen—A3D06AA, from March 26, 2020.
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DOI:
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发表时间:
2018
期刊:
影响因子:
--
作者:
A. Lowe;M. Breed;H. Caron;N. Colpaert;C. Dick;B. Finegan;Mike Gardner;G. Gheysen;R. Gribel;J. Harris;A. Kremer;M. R. Lemes;R. Margis;C. Navarro;F. Salgueiro;Heidy M Villalobos;S. Cavers
通讯作者:
S. Cavers
DOI:
10.4238/gmr16018957
发表时间:
2017
期刊:
Genetics and molecular research : GMR
影响因子:
--
作者:
M. Carvalho;J. Eler;M. Bonin;F. Rezende;Fernando H. Biase;Flávio Vieira Meirelles;L. Regitano;Luiz Lehmann Coutinho;J. C. D. C. Balieiro;J. Ferraz
通讯作者:
J. Ferraz
影响因子:
3
作者:
Clement, Charles R.;de Cristo-Araujo, Michelly;Picanco-Rodrigues, Doriane
通讯作者:
Picanco-Rodrigues, Doriane
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
P. Shanley;G. Medina
通讯作者:
G. Medina
影响因子:
56.9
作者:
A. Roosevelt;R. Housley;M. I. Silveira;S. Maranca;Randall S. Johnson
通讯作者:
Randall S. Johnson