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Phylogeny and origin of pearl millet (Pennisetum glaucum [L.] R. Br) as revealed by microsatellite loci.

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TLDR
It is found that a monophyletic origin of cultivated pearl millet in West Africa is the most likely scenario supported by the data set and the phylogenetic relationship among accessions not showing introgression is analyzed.
Abstract
During the last 12,000 years, different cultures around the world have domesticated cereal crops. Several studies investigated the evolutionary history and domestication of cereals such as wheat in the Middle East, rice in Asia or maize in America. The domestication process in Africa has led to the emergence of important cereal crops like pearl millet in Sahelian Africa. In this study, we used 27 microsatellite loci to analyze 84 wild accessions and 355 cultivated accessions originating from the whole pearl millet distribution area in Africa and Asia. We found significantly higher diversity in the wild pearl millet group. The cultivated pearl millet sample possessed 81% of the alleles and 83% of the genetic diversity of the wild pearl millet sample. Using Bayesian approaches, we identified intermediate genotypes between the cultivated and wild groups. We then analyzed the phylogenetic relationship among accessions not showing introgression and found that a monophyletic origin of cultivated pearl millet in West Africa is the most likely scenario supported by our data set.

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Journal ArticleDOI

Pearl millet genome sequence provides a resource to improve agronomic traits in arid environments

Rajeev K. Varshney, +69 more
- 18 Sep 2017 - 
TL;DR: This work resequenced and analyzed 994 pearl millet lines, enabling insights into population structure, genetic diversity and domestication, and establishes marker trait associations for genomic selection, to define heterotic pools, and to predict hybrid performance.
Journal ArticleDOI

A comparative view of the evolution of grasses under domestication.

TL;DR: The history of domesticated grasses is reviewed and how domestication affected their phenotypic and genomic diversity is reviewed, and the role of mating systems in the domestication process is revisited.
Journal ArticleDOI

4500-Year old domesticated pearl millet (Pennisetum glaucum) from the Tilemsi Valley, Mali: New insights into an alternative cereal domestication pathway

TL;DR: In this paper, the authors report new evidence from the Lower Tilemsi Valley in northeastern Mali, which constitutes the earliest archaeobotanical evidence for domesticated pearl millet (Pennisetum glaucum), predating other finds from Africa or India by several centuries.
Journal ArticleDOI

Genetic diversity in domesticated soybean (Glycine max) and its wild progenitor (Glycine soja) for simple sequence repeat and single-nucleotide polymorphism loci

TL;DR: Genetic analyses of domesticated soybean and its wild progenitor Glycine soja indicated that cultivated soybean tended to form a monophyletic clade with respect to G. soja, and limited evidence of admixture was discovered between these two species.
References
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Journal ArticleDOI

Inference of population structure using multilocus genotype data

TL;DR: Pritch et al. as discussed by the authors proposed a model-based clustering method for using multilocus genotype data to infer population structure and assign individuals to populations, which can be applied to most of the commonly used genetic markers, provided that they are not closely linked.
Journal ArticleDOI

Detecting the number of clusters of individuals using the software STRUCTURE: a simulation study.

TL;DR: It is found that in most cases the estimated ‘log probability of data’ does not provide a correct estimation of the number of clusters, K, and using an ad hoc statistic ΔK based on the rate of change in the log probability between successive K values, structure accurately detects the uppermost hierarchical level of structure for the scenarios the authors tested.
Journal Article

PHYLIP-Phylogeny inference package (Version 3.2)

J. Felsenstein
- 01 Jan 1989 - 
Journal ArticleDOI

Inference of Population Structure Using Multilocus Genotype Data: Linked Loci and Correlated Allele Frequencies

TL;DR: Extensions to the method of Pritchard et al. for inferring population structure from multilocus genotype data are described and methods that allow for linkage between loci are developed, which allows identification of subtle population subdivisions that were not detectable using the existing method.
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