@ARTICLE{TreeBASE2Ref18100,
author = {Jonathan F. Wendel},
title = {New World tetraploid cottons contain Old World cytoplasm.},
year = {1989},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
volume = {86},
number = {},
pages = {4132--4136},
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 S60 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.}
}
Citation for Study 195
Citation title:
"New World tetraploid cottons contain Old World cytoplasm.".
This study was previously identified under the legacy study ID S2x4x96c13c19c03
(Status: Published).
Citation
Wendel J. 1989. New World tetraploid cottons contain Old World cytoplasm. Proceedings of the National Academy of Sciences of the United States of America, 86: 4132-4136.
Authors
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 S60 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.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S195
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@ARTICLE{TreeBASE2Ref18100,
author = {Jonathan F. Wendel},
title = {New World tetraploid cottons contain Old World cytoplasm.},
year = {1989},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
volume = {86},
number = {},
pages = {4132--4136},
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 S60 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.}
}
- Show RIS reference
TY - JOUR
ID - 18100
AU - Wendel,Jonathan F.
T1 - New World tetraploid cottons contain Old World cytoplasm.
PY - 1989
UR -
N2 - 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 S60 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.
L3 -
JF - Proceedings of the National Academy of Sciences of the United States of America
VL - 86
IS -
SP - 4132
EP - 4136
ER -
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