Heterozygosity

Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs

L. Q. Tan, Zhang, C. C., Qi, G. N., Wang, L. Y., Wei, K., Chen, S. X., Zou, Y., Wu, L. Y., and Cheng, H., Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs, vol. 14, pp. 1557-1565, 2015.

Genetic maps are essential tools for quantitative trait locus analysis and marker-assisted selection breeding. In order to select parents that are highly heterozygous for genetic mapping, the heterozygosity (HS) of 24 tea cultivars (Camellia sinensis) was analyzed with 72 simple sequence repeat markers. In total, 359 alleles were obtained with an average of 4.99 per marker. The HS varied greatly from 37.5 to 71.0% with an average of 51.3%.

Isolation and characterization of novel microsatellite markers from Siamese fighting fish (Betta splendens, Osphronemidae, Anabantoidei) and their transferability to related species, B. smaragdina and B. imbellis

V. Chailertrit, Swatdipong, A., Peyachoknagul, S., Salaenoi, J., and Srikulnath, K., Isolation and characterization of novel microsatellite markers from Siamese fighting fish (Betta splendens, Osphronemidae, Anabantoidei) and their transferability to related species, B. smaragdina and B. imbellis, vol. 13, pp. 7157-7162, 2014.

Ten novel microsatellite markers were developed and characterized from Siamese fighting fish (Betta splendens). Nine of ten markers were polymorphic, exhibiting an allelic number (NA) from 2 to 6 alleles per locus. The effective number of alleles (NE) ranged from 1.60 to 3.08 (average of 2.30). The observed (HO) and expected (HE) heterozygosities ranged from 0.13 to 0.67 (average of 0.39) and 0.29 to 0.63 (average of 0.50), respectively.

Phylogenetic inheritance of genetic variability produced by neutral models of evolution

J. José, Puma-Villanueva, W. J., Von Zuben, F. J., and Diniz-Filho, J. A. F., Phylogenetic inheritance of genetic variability produced by neutral models of evolution, vol. 7, pp. 1327-1343, 2008.

The amount of genetic variability in species and populations has been mainly related to microevolutionary forces operating in natural populations and the influence of phylogenetic processes for the distribution of genetic variability has been neglected. To investigate how the current genetic variability distribution depends on the genetic variability of ancestral species, we simulated the evolution of heterozygosity on a pre-determined phylogeny under three neutral models of evolution: genetic drift, drift vs mutation and drift vs migration.

Genetics of quantitative and qualitative traits of isabgol (Plantago ovata)

N. Singh and Lal, R. K., Genetics of quantitative and qualitative traits of isabgol (Plantago ovata), vol. 8, pp. 939-950, 2009.

Isabgol is a medicinal plant known for its high-quality dietary fiber. The genetics and inheritance of economic characters, such as number of panicles, panicle length, seed yield, and swelling factor, were measured by diallel analysis of F1 progenies from seven parents. The additive component of genetic variance was significant for days to flowering, plant height, branches/plant, peduncle length, panicle length, days to maturity, and swelling factor, whereas the dominance component of genetic variance was significant for all the characters except panicles/plant.

Genetic diversity of microsatellite loci in Leopardus pardalis, Leopardus wiedii and Leopardus tigrinus

A. B. Grisolia, Moreno, V. R., Campagnari, F., Milazzotto, M. P., Garcia, J. F., Adania, C. H., and Souza, E. B., Genetic diversity of microsatellite loci in Leopardus pardalis, Leopardus wiedii and Leopardus tigrinus, vol. 6, pp. 382-389, 2007.

The microsatellite loci FCA045, FCA077, FCA008, and FCA096 are highly variable molecular markers which were used to determine the genetic diversity in 148 captive Leopardus sp. The PCR-amplified products of microsatellite loci were characterized in ABI Prism 310 Genetic Analyzer. Allele numbers, heterozygosity, polymorphism information content, exclusive allele number, and shared alleles were calculated. Sixty-five alleles were found and their sizes ranged from 116 to 216 bp in four microsatellite loci.

Greater genetic variability in Argentine Creole than in Thoroughbred horses based on serum protein polymorphisms

S. Díaz, Dulout, F. N., and Peral-García, P., Greater genetic variability in Argentine Creole than in Thoroughbred horses based on serum protein polymorphisms, vol. 1, pp. 261-265, 2002.

Genetic polymorphism was analyzed for five blood proteins: albumin - Al, esterase - Es, α1B-glycoprotein - Xk, transferrin - Tf and hemoglobin - Hb in 200 Thoroughbred (TB) and 124 Argentine Creole (AC) horses. Of the five systems examined, Tf and Hb were not in Hardy-Weinberg equilibrium in either breed and Es was not in equilibrium in the Creole breed. Genetic variability, estimated as average heterozygosity, was higher in AC (H = 0.585 ± 0.131) than in TB (H = 0.353 ± 0.065).

Subscribe to Heterozygosity