Abstract:
:New World tetraploid cottons (Gossypium spp.) originated through hybridization of ancestral diploid species that presently have allopatric ranges in Asia-Africa (the A genome) and the New World tropics and subtropics (the D genome). Despite intensive study, the identity of the parental diploids and the antiquity of polyploidization remain unresolved. In this study, variation in the maternally inherited chloroplast genome was assessed among species representing both of the parental genomes and the tetraploids. Approximately 560 restriction sites were assayed in each accession, representing sequence information for about 3200 nucleotides. The resulting maternal phylogeny has no convergent restriction site mutations and demonstrates that the cytoplasm donor for all tetraploid species was an A genome diploid with a chloroplast genome that is similar to Gossypium arboreum and Gossypium herbaceum. No mutational differences were detected between these two species, and few mutations distinguish the chloroplast genomes of A genome diploids from those of tetraploid taxa. In contrast to expectations based on extensive taxonomic, geographic, and genetic diversity, a surprisingly low level of sequence divergence has accumulated subsequent to polyploidization. Chloroplast genomes of tetraploid species are distinguished from each other by between one and six apparent point mutations. The data suggest that tetraploid cotton originated relatively recently, perhaps within the last 1-2 million years, with subsequent rapid evolution and diversification throughout the New World tropics.
journal_name
Proc Natl Acad Sci U S Aauthors
Wendel JFdoi
10.1073/pnas.86.11.4132subject
Has Abstractpub_date
1989-06-01 00:00:00pages
4132-6issue
11eissn
0027-8424issn
1091-6490journal_volume
86pub_type
杂志文章abstract::Amoebae of the cellular slime mold Dictyostelium discoideum possess an extensive and dynamic endomembrane system that includes many types of acidic vacuoles. A light membrane fraction from Dictyostelium, rich in vacuolar-type H(+)-ATPase, has been described [Padh, H., Lavasa, M. & Steck, T.L. (1989) J. Cell Biol. 108,...
journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.89.17.8025
更新日期:1992-09-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.86.19.7634
更新日期:1989-10-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.90.7.2623
更新日期:1993-04-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.1105586108
更新日期:2011-08-02 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 历史文章,杂志文章
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更新日期:1976-02-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.75.1.486
更新日期:1978-01-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:2000-05-23 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:1991-10-15 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:2020-08-04 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:1978-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:1995-01-31 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.1706696114
更新日期:2017-10-17 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
doi:10.1073/pnas.72.3.1017
更新日期:1975-03-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2019-02-26 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:1979-09-01 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2004-09-28 00:00:00
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更新日期:2003-09-30 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:2013-09-24 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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更新日期:2011-07-05 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:2020-05-19 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
pub_type: 杂志文章
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更新日期:1983-04-01 00:00:00