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Characterization of West and Central African accessions from a pearl millet reference collection for agro-morphological traits and Striga resistance

OAR@ICRISAT

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Relation http://oar.icrisat.org/10664/
http://dx.doi.org/10.1017/S1479262117000272
10.1017/S1479262117000272
 
Title Characterization of West and Central African accessions from a pearl millet reference collection for agro-morphological traits and Striga resistance
 
Creator Sattler, F T
Sanogo, M D
Kassari, I A
Angarawai, I I
Gwadi, K W
Dodo, H
Haussmann, B I G
 
Subject Pearl Millet
Genetics and Genomics
West Africa
Central Africa
Gene Bank
 
Description To promote the utilization of West and Central African (WCA) genetic resources of pearl millet
[Pennisetum glaucum (L.) R. Br.], this study aimed at agro-morphological characterization of selected
accessions from the pearl millet reference collection, established by the Generation
Challenge Program and the International Crops Research Institute for the Semi-Arid Tropics
(ICRISAT). A total of 81 accessions were included, comprising 78 landraces originating from 13, predominantly
WCA countries and three improved cultivars. All 81 accessions were evaluated together
with 18 checks for resistance to the parasitic weed Striga hermonthica (Del.) Benth. in an artificially
infested field at one location in Niger. Determined by available seed quantity, 74 accessions were
characterized together with seven checks in the rainy season 2009 in field trials under low-input and
fertilized conditions in Nigeria, Niger and Mali, respectively. Wide ranges were observed for various
traits. Several accessions were identified as sources for specific traits of interest, i.e. long panicles,
high-grain density, earliness, Striga resistance and stable yielding across environments. The observed
yield inferiority of all Genebank accessions compared with checks may indicate lost adaptation
or inbreeding depression due to an insufficient effective population size during multiplication.
A principal component analysis revealed an immense diversity but also strong admixture among the
tested accessions, i.e. there were no clearly distinct groups. The seed of all genotypes is available
from ICRISAT. The online availability of the characterization data is expected to facilitate efficient use
of these pearl millet accessions by breeding programmes in WCA and worldwide.
 
Publisher Cambridge University Press
 
Date 2018-06
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10664/1/Characterization%20of%20West.pdf
Sattler, F T and Sanogo, M D and Kassari, I A and Angarawai, I I and Gwadi, K W and Dodo, H and Haussmann, B I G (2018) Characterization of West and Central African accessions from a pearl millet reference collection for agro-morphological traits and Striga resistance. Plant Genetic Resources (TSI), 16 (3). pp. 260-272. ISSN 1479-2621