Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.4238/2013.February.27.9 |
Diversity and genetic structure among subpopulations of Gossypium mustelinum (Malvaceae) | |
Alves, M. F.1; Barroso, P. A. V.2; Ciampi, A. Y.3; Hoffmann, L. V.2; Azevedo, V. C. R.3; Cavalcante, U.4 | |
通讯作者 | Barroso, P. A. V. |
来源期刊 | GENETICS AND MOLECULAR RESEARCH
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ISSN | 1676-5680 |
出版年 | 2013 |
卷号 | 12期号:1页码:597-609 |
英文摘要 | Gossypium mustelinum is the only cotton species native to Brazil; it is endemic to the semi-arid region of the northeast. The populations are found near perennial and semi-perennial sources of water, such as ponds or pools in intermittent streams. Problems with in situ conservation derive from human interference in its habitat, mainly because of excessive cattle grazing and deforestation. Establishing efficient strategies for in situ conservation requires knowledge of the genetic structure of the populations. We evaluated the structure and genetic variability of populations of G. mustelinum in the Toco and Capivara Rivers (State of Bahia). Two hundred and eighteen mature G. mustelinum plants were genotyped with SSR markers. The molecular data were used to estimate the allelic frequencies, the heterozygosity, the F statistics, and the genetic distance among the populations and among individuals. We found high genetic diversity among the populations. The F-ST indexes for each population were also high and strongly correlated with physical distance. The high estimated level of endogamy and the low observed heterozygosity are indicative that the populations reproduce mainly by self-fertilization and crosses between related individuals. Consequently, strategies for in situ preservation should include at least three occurrence sites of G. mustelinum from each population. For ex situ conservation, the collections should include as many sites as possible. |
英文关键词 | Conservation Genetic structure Gossypium mustelinum Microsatellites Wild cotton |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000318864400064 |
WOS关键词 | COTTON |
WOS类目 | Biochemistry & Molecular Biology ; Genetics & Heredity |
WOS研究方向 | Biochemistry & Molecular Biology ; Genetics & Heredity |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/177280 |
作者单位 | 1.Univ Fed Goias, Dept Melhoramento Plantas, Goiania, Go, Brazil; 2.Brazilian Agr Res Corp, Nucleo Cerrado, Embrapa Cotton, Goiania, Go, Brazil; 3.Embrapa Recursos Genet & Biotecnol, Embrapa Cenargen, Brasilia, DF, Brazil; 4.Univ Brasilia, Dept Genet & Morfol, Brasilia, DF, Brazil |
推荐引用方式 GB/T 7714 | Alves, M. F.,Barroso, P. A. V.,Ciampi, A. Y.,et al. Diversity and genetic structure among subpopulations of Gossypium mustelinum (Malvaceae)[J],2013,12(1):597-609. |
APA | Alves, M. F.,Barroso, P. A. V.,Ciampi, A. Y.,Hoffmann, L. V.,Azevedo, V. C. R.,&Cavalcante, U..(2013).Diversity and genetic structure among subpopulations of Gossypium mustelinum (Malvaceae).GENETICS AND MOLECULAR RESEARCH,12(1),597-609. |
MLA | Alves, M. F.,et al."Diversity and genetic structure among subpopulations of Gossypium mustelinum (Malvaceae)".GENETICS AND MOLECULAR RESEARCH 12.1(2013):597-609. |
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