Genetic relationships among subspecies of Vigna unguiculata (L.) Walp. based on allozyme variation

1999 ◽  
Vol 98 (6-7) ◽  
pp. 1104-1119 ◽  
Author(s):  
R. S. Pasquet
Keyword(s):  
Vigna Unguiculata ◽  
Genetic Relationships ◽  
Allozyme Variation

Allozyme Variation and Genetic Relationships among Species of Cimicifuga (Ranunculaceae) from Korea

2000 ◽  
Vol 161 (3) ◽  
pp. 413-423 ◽  
Author(s):  
Hyun‐Woo Lee ◽  
Myong Gi Chung ◽  
Youngbae Suh ◽  
Chong‐Wook Park
Keyword(s):  
Genetic Relationships ◽  
Allozyme Variation

Genetic relationships of eight species of Pacific tunas (Teleostei: Scombridae) inferred from allozyme analysis

1995 ◽  
Vol 46 (7) ◽  
pp. 1021 ◽  
Author(s):  
NG Elliott ◽  
RD Ward
Keyword(s):  
Liver Enzymes ◽  
Genetic Relationships ◽  
Phylogenetic Analyses ◽  
Allozyme Variation ◽  
Allozyme Analysis ◽  
Average Heterozygosity ◽  
Katsuwonus Pelamis ◽  
Thunnus Alalunga ◽  
Auxis Thazard ◽  
Allozyme Loci

A phylogenetic analysis of eight species of Pacific tunas was made after examining allozyme variation at 23 muscle and liver enzymes encoded by 35 loci. The eight species of tuna were: Thunnus alalunga, albacore; T. obesus, bigeye; T. thynnus orientalis, northern bluefin; T. maccoyii, southern bluefin; T. albacares, yellowfin; Auxis thazard, frigate; Euthynnus affiizii kawakawa; Katsuwonus pelamis, skipjack. All species except the northern bluefin were also examined for variation at three eye-specific loci. The average heterozygosity per locus ranged from 0.038 (frigate) to 0.070 (bigeye). Genetic relationships were examined on the basis of the 35 loci screened in all species. Genetic identities among the five Thunnus species were high, averaging 0.864 and ranging from 0.788 to 0.923. Whereas the albacore appeared to be the most divergent of the Thunnus species (mean identity to other Thunnus species of 0.825, range 0.788-0.452), there was little differentiation between yellowfin, southern bluefin and northern bluefin tunas (mean identity 0.905, range 0.892-0.923), and phylogenetic analyses failed to resolve the branch order among the Thunnus species. The non-Thunnus tunas were quite divergent both from one another and from Thunnus species (mean identity 0.358, range 0.280-0.606). Diagnostic allozyme loci were identified, allowing the discrimination of all species.

scholarly journals ENZYME VARIABILITY IN THE DROSOPHILA WILLISTONI GROUP. III. AMOUNTS OF VARIABILITY IN THE SUPERSPECIES, D. PAULISTORUM

Genetics ◽  
1972 ◽  
Vol 70 (1) ◽  
pp. 87-112
Author(s):  
Rollin C Richmond
Keyword(s):  
Genetic Variation ◽  
Balancing Selection ◽  
Genetic Relationships ◽  
Natural Populations ◽  
Allozyme Variation ◽  
Metabolizing Enzymes ◽  
Group Iii ◽  
Allozyme Loci ◽  
Drosophila Paulistorum ◽  
Average Individual

ABSTRACT The semispecies composing the superspecies, Drosophila paulistorum, have been analyzed for genetic variation at 17 enzyme loci. On the average a population of D. paulistorum is polymorphic for 55–67% of its loci and an average individual is heterozygous at 21% of its loci. The pattern of genetic variability found supports the hypothesis that allozyme variation is maintained in natural populations by some form of balancing selection. Evidence is presented which supports the hypothesis that glucose-metabolizing enzymes are less genetically variable than non-glucose-metabolizing enzymes. The known genetic relationships between the semispecies of D. paulistorum are discussed in the light of the frequencies of alleles at allozyme loci.

scholarly journals Allozyme variation and genetic relationships among species in the C arex willdenowii complex (Cyperaceae)

1998 ◽  
Vol 85 (4) ◽  
pp. 546-552 ◽  
Author(s):  
Bruce A. Ford ◽  
D. A. Ross McQueen ◽  
Robert F. C. Naczi ◽  
Anton A. Reznicek
Keyword(s):  
Genetic Relationships ◽  
Allozyme Variation

Genetic affinities among subspecies of a widespread Australian lycaenid butterfly, Ogyris amaryllis (Hewitson)

2006 ◽  
Vol 54 (6) ◽  
pp. 429 ◽  
Author(s):  
D. J. Schmidt ◽  
J. M. Hughes
Keyword(s):  
Host Plant ◽  
Sequence Data ◽  
Genetic Relationships ◽  
Genetic Data ◽  
Allozyme Variation ◽  
Larval Host ◽  
Eastern Australia ◽  
Allopatric Divergence ◽  
Distribution And Ecology ◽  
Lycaenid Butterfly

Genetic relationships among nominal subspecies of the lycaenid butterfly Ogyris amaryllis were investigated in eastern Australia. High levels of variation and population differentiation observed for allozyme markers were not consistent with subspecies boundaries. Partitioning of allozyme variation was explained better by arranging populations according to their larval host plant. Mitochondrial sequence data recovered a polyphyletic inland subspecies, with several peripheral subspecies showing reduced variation within this topology. Non-parametric topology tests rejected monophyly of the nominal subspecies and suggested that allopatric divergence is unlikely to account for the evolution of this complex. Genetic data, combined with information on distribution and ecology, are more consistent with a pattern of peripheral isolation associated with host-plant specialisation of coastal populations.

Allozyme Characterisation of the Salt Lake Spiders (Lycosa: Lycosidae: Araneae) of Southern Australia: Systematic and Population Genetic Implications.

1996 ◽  
Vol 44 (5) ◽  
pp. 535 ◽  
Author(s):  
P Hudson ◽  
M Adams
Keyword(s):  
Population Genetic ◽  
Salt Lake ◽  
Genetic Relationships ◽  
South Australia ◽  
Wolf Spider ◽  
Allozyme Variation ◽  
Population Genetic Analysis ◽  
Additional Species ◽  
Population Substructuring ◽  
The Times

Allozyme electrophoresis was used to determine the genetic relationships amongst various populations of Lycosa alteripa, L. eyrei and L. salifodina, the three described species of wolf spider endemic to the normally dry salt lakes of southern Australia. A total of 185 individuals from 38 sites was analysed for allozyme variation at 31-35 loci. The results demonstrate the presence of two additional species of salt lake spider, one related to L. alteripa and the other related to L. eyrei. Limited population genetic analysis of the data indicates that population substructuring is common within most species, often to the finest level of geographic sampling. The data indicate that gene flow is limited in these species and reveal three instances of a similar macro-geographic pattern being displayed amongst subpopulations or taxa in central South Australia. Estimates of genetic divergence between the five taxa have also been used to provide a 'first-guess' estimate of the times of divergence for the major cladogenic events within this lineage.

scholarly journals Comparative analysis of Genetic Diversity among Pod Vegetables Genetic Resources Potential in Indonesia Revealed by ISSR Markers

2019 ◽  
Vol 10 (3) ◽  
pp. 161-172
Author(s):  
Ria Rif’atunidaudina ◽  
Sobir ◽  
Awang Maharijaya
Keyword(s):  
Genetic Diversity ◽  
Vigna Unguiculata ◽  
Genetic Relationships ◽  
Phenotypic Variability ◽  
Lima Bean ◽  
Issr Markers ◽  
Similarity Coefficient ◽  
Phaseolus Lunatus ◽  
Mucuna Pruriens ◽  
Velvet Bean

Cowpea (Vigna unguiculata ssp unguiculata), yardlong bean (Vigna unguiculata ssp sesquipedalis), Bambara groundnut (V.subterranea), lima bean (Phaseolus lunatus), bush bean (P. vulgaris), jack bean (Canavalia ensiformis), velvet bean (Mucuna pruriens) and winged bean (Psophocarpus tetragonolobus) are the important pod vegetable of the legume crop in Indonesia. These crops have a high economic and nutritional value. Its dry seeds are rich in proteins just like soybeans that can support human health and future food supply. The genetic diversity among different pod vegetables is not very well known. The objectives of this research were to determine the genetic relationships among different pod vegetable species based on ISSR markers. 32 accessions were analyzed by 11 ISSR primers. The result showed that the ISSR marker generated 80 DNA band with the polymorphism rate of 100% and the informative primers were PKBT 3 and PKBT 6. The result of cluster analysis and PCA analysis grouped all 32 accessions of the vegetable pod into eight clusters, indicating that the majority of the accession of a given species tend to group. Gower's similarity coefficient among all accessions varied from 0.425 to 0.988, and from 0.444 to 0.700 at the species level. The ISSR markers revealed the close relatedness between V. subterranea - C. ensiformis species, while the greatest distance was found between the P. vulgaris - M. pruriens species. Such a determination of relatedness is useful for a better understanding of the relationships among different pod vegetable species, which are generally considered to be a complex group with high phenotypic variability.   Keywords: clustering, genetic distance, polymorphism, pulses, similarity coefficient

An electrophoretic study of the phylogenetic relationships among four species of sticklebacks (Pisces: Gasterosteidae)

1984 ◽  
Vol 62 (11) ◽  
pp. 2313-2316 ◽  
Author(s):  
Jocelyn Hudon ◽  
Helga Guderley
Keyword(s):  
Phylogenetic Relationships ◽  
Gasterosteus Aculeatus ◽  
Genetic Relationships ◽  
Cladistic Analysis ◽  
Allozyme Variation ◽  
Congeneric Species ◽  
Phenetic Analysis ◽  
Pungitius Pungitius ◽  
Electrophoretic Study ◽  
Apeltes Quadracus

The genetic relationships between four species of sticklebacks, Gasterosteus aculeatus Linneaus form trachurus, Gasterosteus wheatlandi Putnam, Pungitius pungitius (Linneaus), and Apeltes quadracus (Mitchill) were estimated by a locus-by-locus analysis of interspecific allozyme variation as well as by a band-counting analysis of soluble proteins in muscle. The locus-by-locus data was analysed both by a qualitative cladistic analysis and by a quantitative phenetic analysis. Both the locus-by-locus analysis and the band-counting analysis generated phylogenies which concord with the previously established relationships among these species. Our analyses indicate that these species have diverged considerably with a genetic identity of only 0.37 between the two congeneric species.

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