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Genotyping-by-sequencing reveals population structure and genetic diversity of a Buffelgrass (Cenchrus ciliaris L.)

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Title Genotyping-by-sequencing reveals population structure and genetic diversity of a Buffelgrass (Cenchrus ciliaris L.)
 
Creator Teressa, Alemayehu
Assefa, Yilikal
Hanson, Jean
Abdena, Asebe
Muktar, Meki S.
Habte, Ermias
Sartie, Alieu
Jones, Christopher S.
 
Subject grasses
genetic diversity
single nucleotide polymorphism
forage
animal feeding
livestock
ecology
 
Description Buffelgrass (Cenchrus ciliaris L.) is an important forage grass widely grown across the world with many good characteristics including high biomass yield, drought tolerance, and adaptability to a wide range of soil conditions and agro-ecologies. Two hundred and five buffelgrass accessions from diverse origins, conserved as part of the in-trust collection in the ILRI genebank, were analyzed by genotyping-by-sequencing using the DArTseq platform. The genotyping generated 234,581 single nucleotide polymorphism (SNP) markers, with polymorphic information content (PIC) values ranging from 0.005 to 0.5, and the short sequences of the markers were aligned with foxtail millet (Setaria italica) as a reference genome to generate genomic map positions of the markers. One thousand informative SNP markers, representing a broad coverage of the reference genome and with an average PIC value of 0.35, were selected for population structure and diversity analyses. The population structure analysis suggested two main groups, while the hierarchical clustering showed up to eight clusters in the collection. A representative core collection containing 20% of the accessions in the collection, with germplasm from 10 African countries and Oman, was developed. In general, the study revealed the presence of considerable genetic diversity and richness in the collection and a core collection that could be used for further analysis for specific traits of interest.
 
Date 2020-02-27
2020-02-28T13:53:42Z
2020-02-28T13:53:42Z
 
Type Journal Article
 
Identifier Teressa, A., Assefa, Y., Hanson, J., Abdena, A., Muktar, M.S., Habte, E., Sartie, A.M. and Jones, C.S. 2020. Genotyping-by-sequencing reveals population structure and genetic diversity of a Buffelgrass (Cenchrus ciliaris L.). Diversity 12(3):88.
1424-2818
https://hdl.handle.net/10568/107319
https://www.mdpi.com/1424-2818/12/3/88
https://doi.org/10.3390/d12030088
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Publisher MDPI AG
 
Source Diversity