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
Claim · model-written summary
A total of 28 alleles were recorded across 8 loci.
- Taxon
- Faidherbia albida
Faidherbia 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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e1“A total of 28 alleles were recorded across 8 loci and 255 samples”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e2“The effective mean number of alleles per locus was 2.3”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e3“Observed heterozygosity ranged from 0.24 to 0.30”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e4“expected heterozygosities ranged from 0.22 to 0.26”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e5“For most loci, FIS was negative”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e6“Higher variation was observed within than among the northern Cameroon populations”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e7“principal component and admixture analyses did not reveal any population substructure”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e1“Phenotypic diversity in 3-month-old seedlings was also characterized and significant within population variation was found for most morphological traits”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e1“Although some populations differed significantly for one or more traits”
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.
Verbatim
e0“Faidherbia albida (DEL.) A. Chev is widely grown in the northern region of Cameroon”
e1“in general the populations were phenotypically similar”
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.
Verbatim
e1“These results suggest little barrier to gene flow between populations of F. albida in northern Cameroon”
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.
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”