A domestication history of dynamic adaptation and genomic deterioration in Sorghum
Research output: Contribution to journal › Journal article › peer-review
Standard
A domestication history of dynamic adaptation and genomic deterioration in Sorghum. / Smith, Oliver; Nicholson, William V.; Kistler, Logan; Mace, Emma; Clapham, Alan; Rose, Pamela; Stevens, Chris; Ware, Roselyn; Samavedam, Siva; Barker, Guy; Jordan, David; Fuller, Dorian Q.; Allaby, Robin G.
In: Nature Plants, Vol. 5, No. 4, 01.04.2019, p. 369-379.Research output: Contribution to journal › Journal article › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - A domestication history of dynamic adaptation and genomic deterioration in Sorghum
AU - Smith, Oliver
AU - Nicholson, William V.
AU - Kistler, Logan
AU - Mace, Emma
AU - Clapham, Alan
AU - Rose, Pamela
AU - Stevens, Chris
AU - Ware, Roselyn
AU - Samavedam, Siva
AU - Barker, Guy
AU - Jordan, David
AU - Fuller, Dorian Q.
AU - Allaby, Robin G.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - The evolution of domesticated cereals was a complex interaction of shifting selection pressures and repeated episodes of introgression. Genomes of archaeological crops have the potential to reveal these dynamics without being obscured by recent breeding or introgression. We report a temporal series of archaeogenomes of the crop sorghum (Sorghum bicolor) from a single locality in Egyptian Nubia. These data indicate no evidence for the effects of a domestication bottleneck, but instead reveal a steady decline in genetic diversity over time coupled with an accumulating mutation load. Dynamic selection pressures acted sequentially to shape architectural and nutritional domestication traits and to facilitate adaptation to the local environment. Later introgression between sorghum races allowed the exchange of adaptive traits and achieved mutual genomic rescue through an ameliorated mutation load. These results reveal a model of domestication in which genomic adaptation and deterioration were not focused on the initial stages of domestication but occurred throughout the history of cultivation.
AB - The evolution of domesticated cereals was a complex interaction of shifting selection pressures and repeated episodes of introgression. Genomes of archaeological crops have the potential to reveal these dynamics without being obscured by recent breeding or introgression. We report a temporal series of archaeogenomes of the crop sorghum (Sorghum bicolor) from a single locality in Egyptian Nubia. These data indicate no evidence for the effects of a domestication bottleneck, but instead reveal a steady decline in genetic diversity over time coupled with an accumulating mutation load. Dynamic selection pressures acted sequentially to shape architectural and nutritional domestication traits and to facilitate adaptation to the local environment. Later introgression between sorghum races allowed the exchange of adaptive traits and achieved mutual genomic rescue through an ameliorated mutation load. These results reveal a model of domestication in which genomic adaptation and deterioration were not focused on the initial stages of domestication but occurred throughout the history of cultivation.
U2 - 10.1038/s41477-019-0397-9
DO - 10.1038/s41477-019-0397-9
M3 - Journal article
C2 - 30962527
AN - SCOPUS:85064074508
VL - 5
SP - 369
EP - 379
JO - Nature Plants
JF - Nature Plants
SN - 2055-026X
IS - 4
ER -
ID: 241163500