Genetic variability inCebus appella paraguayanus: Biochemical analysis of seven loci and variation in Glyoxalase I (E.C.4.4.1.5)

Abstract

ABSTRACT. An analysis of seven loci in Cebus apella paraguayanus showed that Glyoxalase I was polymorphic due the appearance of two alleles (GLO*2 and GLO*3) with frequencies of 0.955 and 0.045, respectively. Of the two alleles, GLO*2 was electrophoretically similar to the most common allele found in the human and Aotus. These results confirmed our previous findings in the same population sample showing that this subspecies has a very low genetic variation among New World primates.

Biochemical diversity and genetic distance in two species of the genusSaguinus

“…However these results should be analyzed carefully because the number of animals sampled is small and so it might not express the actual variability occurring in natural populations. The species used as an outgroup, Alouatta belzebul, showed H=5.5%, almost of the same magnitude of that observed in S. midas midas and similar to results previously obtained for this species by SCHNEIDER et al (1991). The lowest H values found in neotropical monkeys were reported by FORMAN et al (1986) for Leontopithecus rosalia and SAMPAIO et al (1991) for Cebus apella paraguayanus.…”

Divergence between biochemical and cytogenetic differences in three species of the Callicebus moloch group

“…For comparative purposes we used data on the same 20 loci studied here that had previously been obtained from two other species (Schneider et al, 1988Sampaio et al, 1991;Melo et al, 1992). The values for Cebus apella (1.5 k 1.1) were similar to those obtained for Callicebus, but they were somewhat higher (5.1 * 2.3) for Alouatta belzebul.…”

Biochemical diversity and genetic distances in the Pitheciinae subfamily (primates, platyrrhini)

“…All the observed phenotypic distributions are in accordance with the expected ones, assuming diallelic models in Hardy-Weinberg equilibrium (Table 1) Four loci showed inter-population variation only (Table 2): malate dehydrogenase and did not show inter-populational variation. The genetic variability observed among the pithecines was compared with previous estimates of heterozygosity obtained for Alouatta belzebul (SCHNEIDER et al, 1991) and Cebus apella paraguayanus (SAMPAIO et al, 1991) (Table 3). The heterozygosities were re-estimated in order to match the same number and type of loci.…”

“…1.15.1.1), Hemoglobin (HBA, HBB); and (2) Serum --albumin (ALB) and haptoglobin (HP). The electrophoretic procedures used have been described elsewhere (LIMA et al, 1990;SCHNEIDER et al, 1991).…”

“…The relevant information can be summarized as follows: (1) Cacajao calvus (Cac): 7 specimens originated from Rio Ucayali were sampled while kept in captivity at the "Proyeto Peruano de Primatologia" Manoel Moro Sommo, Iquitos, Peru; (2) Chiropotes satanas chiropotes (Csc): 12 specimens were captured at both banks of Rio Trombetas, Porteira county, Par/t, Brazil; (3) Chiropotes satanas utahicki (Csu): 95 specimens were apprehended from the west bank of the Rio Tocantins in Tucurui county, Pardi, Brazil, during the building of a hydroelectric plant (see SCHNEIDER et al, 1991, for details); and (4) Pithecia irrorata (Pi): 143 specimens were captured in the east and west banks of the Rio Jamari near Porto Velho, Rondonia, Brazil during the building of a hydroelectric plant. All these collecting sites have been described before (SCHNEIDER, SCHNEIDER, SAMPAIO, MONTOYA, TAPIA, ENCARNACION, ANSELMO, t~ SALZANO, 1993).…”