Publications by authors named "Xian-Yao Li"
Hexavalent chromium (Cr(VI)) is a cytotoxic heavy metal pollutant that adversely affects all life forms. Interestingly, the crustacean Procambarus clarkii exhibits a relatively high tolerance to heavy metals. The underlying mechanisms remain unclear.
View Article and Find Full Text PDFThe genomic DNAs from six chicken breeds in China were amplified using two microsatellite primers. The PCR products were detected by non-denatured and denatured PAGE gels respectively, and the gels were dyed by silver. There were distinct differences between the two kinds of gel.
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- Tibetan chickens share similar morphological traits with the Red Jungle Fowl, suggesting a common ancestry with domestic chickens.
- Researchers employed Multiplex PCR and polyacrylamide gel electrophoresis to study genetic variations in Tibetan chickens, focusing on 20 microsatellite loci.
- Findings revealed a significant level of genetic diversity, with a mean of 7.25 polymorphic alleles per locus, indicating that high polymorphisms are linked to differences in production performance and morphology within the species.
[Analysis of genetic relationship of egg-type chickens using microsatellite markers].
Yi Chuan Xue Bao
December 2004
Twenty microsatellite markers were used to analyse the genetic relationship among four package lines (A, B, C, D) of egg-type chickens introduced in 2001 an 2002. The genetic heterozygosity, polymorphism information content (PIC), effective allele number, and genetic distance among lines were calculated and dendrogram was constructed to evaluate the genetic variability within line and genetic relations among lines. In total, 65 alleles in 20 microsatellite markers were detected.
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- Twenty-eight microsatellite markers were used to study the genetic variation of two local chicken breeds, Dagu Chicken and Beijing Fatty Chicken, across different farms using 125 samples.
- Genetic analysis revealed high polymorphism in the populations, with heterozygosity and polymorphic information content (PIC) values exceeding 0.5, indicating strong genetic diversity.
- Despite overall biodiversity retention, distinct genetic differences were noted between farms housing the same chicken breeds, suggesting variability in conservation effectiveness.