Genetics and Conservation

Hedrick, Philip W.; Schonewald-Cox, C.; Chambers, Scott D.; MacBryde, Bruce; Thomas, W. Kelley

doi:10.2307/2408749

Cited by 3 publications

(2 citation statements)

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“…With sorghum being a self-pollinating crop, it is expected that the percentage variation within the population will be lower than among the population (Hamrick, 1983). Our study revealed a low (6%) percentage of genetic variation among the sorghum accession while 94% genetic variation was found within the germplasms.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity assessment of sorghum (Sorghum bicolor (L.) Moench) accessions using single nucleotide polymorphism markers

Afolayan

Deshpande

Aladele

et al. 2019

Plant Genet. Resour.

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Sorghum (Sorghum bicolor (L.) Moench) is an important resource to the national economy and it is essential to assess the genetic diversity in existing sorghum germplasm for better conservation, utilization and crop improvement. The aim of this study was to evaluate the level of genetic diversity within and among sorghum germplasms collected from diverse institutes in Nigeria and Mali using Single Nucleotide Polymorphic markers. Genetic diversity among the germplasm was low with an average polymorphism information content value of 0.24. Analysis of Molecular Variation revealed 6% variation among germplasm and 94% within germplasms. Dendrogram revealed three groups of clustering which indicate variations within the germplasms. Private alleles identified in the sorghum accessions from National Center for Genetic Resources and Biotechnology, Ibadan, Nigeria and International Crop Research Institute for the Semi-Arid Tropics, Kano, Nigeria shows their prospect for sorghum improvement and discovery of new agronomic traits. The presence of private alleles and genetic variation within the germplasms indicates that the accessions are valuable resources for future breeding programs.

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Section: Discussionmentioning

confidence: 99%

Genetic diversity assessment of sorghum (Sorghum bicolor (L.) Moench) accessions using single nucleotide polymorphism markers

Afolayan

Deshpande

Aladele

et al. 2019

Plant Genet. Resour.

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“…Consequently, populations from dissimilar habitats might show variable morphological expressions. Various chemical, physiological and genetic changes have also been reported in response to environmental instability (Brown, 1979; Hamrick, 1983). Morphological features alone are inadequate for studying genetic polymorphism, owing to their limited representation of the total genome and the high degree of environmental modification to which they are susceptible (Forrest et al , 2000).…”

Section: Introductionmentioning

confidence: 99%

Polymorphism in Gloriosa superba

Ghosh

Ghosh²,

Jha

2009

Plant Genet. Resour.

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Gloriosa superba L. is a highly valued indigenous medicinal plant. It is available throughout India with noticeable variations in morphology and colchicine content. In the present study, morphological, phytochemical, cytological and molecular data are employed to screen the polymorphism, if present, in five different populations of G. superba L. Based on gross morphological traits, the plants can be grouped into two clusters: Amtala (AM) and Baruipur (BR) plants belonging to one cluster, and Siliguri (SG), Darjeeling (DJ) and Sikkim (SK) plants belonging to the other. Colchicine content of the tubers ranged from 0.06% in AM plants to 0.37% in BR plants. Cytological analysis revealed that the SK plants showed 44 chromosomes, i.e. tetraploid status, whereas the other four were diploid. Assessment of the karyomorphology of the four diploid populations indicated a close similarity between AM and BR plants, whereas the SG plants exhibited slightly different karyomorphology and lacked sm-type chromosomes. Random Amplified Polymorphic DNA (RAPD) analysis revealed 76% polymorphism among the populations. Cluster analysis using RAPD resulted in three main cluster groups; BR and SG plants clustered together indicating that they are most closely related when compared with other populations.

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Genetic conservation in captive populations and endangered species

Hedrick

1992

Applied Population Biology

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Genetics and Conservation

Cited by 3 publications

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Genetic diversity assessment of sorghum (Sorghum bicolor (L.) Moench) accessions using single nucleotide polymorphism markers

Genetic diversity assessment of sorghum (Sorghum bicolor (L.) Moench) accessions using single nucleotide polymorphism markers

Polymorphism in Gloriosa superba

Genetic conservation in captive populations and endangered species

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