Paper · 2020 · AFRICAN JOURNAL OF BIOTECHNOLOGY

Genetic diversity of Faidherbia albida populations in the Sudano Sahelian region of Cameroon, using simple sequence repeat (SSR) markers

Dorothy Tchatchoua T.; Scott Poethig R.; Doody Erin; et al.

12
claims
22
verbatim quotes
4
citations
3
research areas
✓
Open access · cc-by

Abstract

Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon because of its many benefits to local communities. However, droughts and deforestation have led to decreases in the abundance of this species, increasing the need to identify improved genotypes for conservation, management, and breeding. The genetic diversity of F. albida in nine populations from the Sudano-Sahelian region of northern Cameroon was characterized using microsatellite (SSRs) markers. A total of 28 alleles were recorded across 8 loci and 255 samples. The effective mean number of alleles per locus was 2.3. Observed heterozygosity ranged from 0.24 to 0.30, while expected heterozygosities ranged from 0.22 to 0.26. For most loci, FIS was negative. Higher variation was observed within than among the northern Cameroon populations, and principal component and admixture analyses did not reveal any population substructure. Phenotypic diversity in 3-month-old seedlings was also characterized and significant within population variation was found for most morphological traits. Although some populations differed significantly for one or more traits, in general the populations were phenotypically similar. These results suggest little barrier to gene flow between populations of F. albida in northern Cameroon, and that no single provenance is likely to be superior for selection and breeding purposes. Key words: Faidherbia albida, phenotypic, genotypic, variation, populations, breeding.

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Claims 12

Observationobservedoriginal resultmeasured

Claim · model-written summary

A total of 28 alleles were recorded across 8 loci.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
allelese1
Value
28 allelese1
Qualifier
across 8 loci and 255 samplese1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e1

“A total of 28 alleles were recorded across 8 loci and 255 samples”

✓ located verbatim in the source · abstract, characters 485–550 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The effective mean number of alleles per locus was 2.3.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
effective mean number of alleles per locuse2
Value
2.3e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e2

“The effective mean number of alleles per locus was 2.3”

✓ located verbatim in the source · abstract, characters 552–606 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Observed heterozygosity ranged from 0.24 to 0.30.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
Observed heterozygositye3
Value
0.24 to 0.30e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e3

“Observed heterozygosity ranged from 0.24 to 0.30”

✓ located verbatim in the source · abstract, characters 608–656 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Expected heterozygosities ranged from 0.22 to 0.26.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
expected heterozygositiese4
Value
0.22 to 0.26e4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e4

“expected heterozygosities ranged from 0.22 to 0.26”

✓ located verbatim in the source · abstract, characters 664–714 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

FIS was negative for most loci.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
FISe5
Direction
negativee5
Qualifier
For most locie5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e5

“For most loci, FIS was negative”

✓ located verbatim in the source · abstract, characters 716–747 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Genetic variation was higher within than among the northern Cameroon populations.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
variatione6
Direction
Highere6
Comparator
among the northern Cameroon populationse6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e6

“Higher variation was observed within than among the northern Cameroon populations”

✓ located verbatim in the source · abstract, characters 749–830 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Principal component and admixture analyses did not reveal population substructure.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
population substructuree7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e7

“principal component and admixture analyses did not reveal any population substructure”

✓ located verbatim in the source · abstract, characters 836–921 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Significant within-population variation was found for most morphological traits of 3-month-old seedlings.

Taxon
Faidherbia albidaFaidherbia albidae0
Organ / stage
3-month-old seedlingse1
Outcome
significant within population variatione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e1

“Phenotypic diversity in 3-month-old seedlings was also characterized and significant within population variation was found for most morphological traits”

✓ located verbatim in the source · abstract, characters 923–1075 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Some populations differed significantly for one or more traits.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
populations differed significantly for one or more traitse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e1

“Although some populations differed significantly for one or more traits”

✓ located verbatim in the source · abstract, characters 1077–1148 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

In general, the populations were phenotypically similar.

Taxon
Faidherbia albidaFaidherbia albidae0
Outcome
phenotypically similare1
Qualifier
in generale1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”

✓ located verbatim in the source · abstract, characters 0–83 · show in text ↑
e1

“in general the populations were phenotypically similar”

✓ located verbatim in the source · abstract, characters 1150–1204 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

There is little barrier to gene flow between F. albida populations in northern Cameroon.

Taxon
F. albidaFaidherbia albidae1
Outcome
little barrier to gene flowe1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e1

“These results suggest little barrier to gene flow between populations of F. albida in northern Cameroon”

✓ located verbatim in the source · abstract, characters 1206–1309 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

No single F. albida provenance is likely to be superior for selection and breeding.

Taxon
F. albidaFaidherbia albidae1
Outcome
no single provenance is likely to be superior for selection and breeding purposese1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Faidherbia albida
Faidherbia albida · TaxonMarco Schmidt [1] · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e1

“These results suggest little barrier to gene flow between populations of F. albida in northern Cameroon, and that no single provenance is likely to be superior for selection and breeding purposes”

✓ located verbatim in the source · abstract, characters 1206–1401 · show in text ↑