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Lagudah ES, Hanna WW. Species relationship in the Pennisetum gene pool: enzyme polymorphism. Theor Appl Genet. 1989;78(6):801-8doi: 10.1007/BF00266662.
Lagudah, E. S., & Hanna, W. W. (1989). Species relationship in the Pennisetum gene pool: enzyme polymorphism. TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 78(6), 801-8. https://doi.org/10.1007/BF00266662
Lagudah, E S, and Hanna, W W. "Species relationship in the Pennisetum gene pool: enzyme polymorphism." TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik vol. 78,6 (1989): 801-8. doi: https://doi.org/10.1007/BF00266662
Lagudah ES, Hanna WW. Species relationship in the Pennisetum gene pool: enzyme polymorphism. Theor Appl Genet. 1989 Dec;78(6):801-8. doi: 10.1007/BF00266662. PMID: 24226010.
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Theor Appl Genet. 1989 Dec;78(6):801-8. doi: 10.1007/BF00266662.

Species relationship in the Pennisetum gene pool: enzyme polymorphism.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

E S Lagudah, W W Hanna

Affiliations

  1. Coastal Plain Experiment Station, IBPGR and USDA-ARS, University of Georgia, 31793, Tifton, GA, USA.

PMID: 24226010 DOI: 10.1007/BF00266662

Abstract

Variation in leaf esterases (EST), 6-phosphogluconate dehydrogenase (PGD), shikimate dehydrogenase (SKDH), leucine aminopeptidase (AMP), phosphoglucomutase (PGM) and malate dehydrogenase (MDH) is reported in the Pennisetum gene pool. In the primary gene pool, polymorphism for EST, AMP, SKDH was very high, as compared to the near-monomorphic isozymes of PGD. Two loci controlling leaf esterases Est-1 and Est-2, were identified in the primary gene pool. Differences in allelic frequency distribution of the polymorphic Est-1 locus occur between the cultivated and wild pearl millet. The prevalent alleles of Est-1 are absent in P. purpureum Schumach (secondary gene pool). A monomorphic band of the α-esterase-specific Est-2 locus was identified in most of the secondary gene pool accessions, P. squamulatum Fresen and an accession of P. pedicellatum. SKDH and EST revealed differences between most of the tertiary gene pool species. By contrast, a PGD zymogram was prevalent in several species of different sectional taxa. Gene duplication for PGD isozymes occurs in the diploid species, P. ramosum, of the tertiary gene pool. Heterodimers of PGD and EST were observed in the hybrid between pearl millet and P. squamulatum, whereas a monomeric structure characterized SKDH and AMP.

References

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