Sentence examples for the level of dna polymorphism from inspiring English sources

The level of DNA polymorphism was estimated as the per-site nucleotide diversity (π: [40]), and nucleotide divergence between species as K, the number of per-site substitutions corrected according to Jukes and Cantor [41].

We also found a weak signal of recombination within the rice lineage; this signal is however questionable as the level of DNA polymorphism is very low.

Average levels of nucleotide diversity per site (estimated by θs) were 17.52 × 10-3 (15.73 × 10-3 19.17 × 10-3) and 9.00 × 10-3 10-3 10.20-3–10.20 × 10-3) for African and American strains (Table 1), respectively, and this increase in the level of DNA polymorphism in African strains was statistically significant (P = 0.0005, paired sign test).

This can be attributed to: (i) the low level of DNA polymorphism within the primary (cultivated) gene pool assessed by means of RAPD, RFLP, AFLP and recently by diversity array technologies (DArT) [ 11- 15]; and (ii) a paucity of molecular markers available for genetic analysis in pigeonpea [ 16- 20].

The highest level of DNA polymorphism was detected in the LRR domain (π = 0.17, 0.20 and 0.15) while the most conserved regions were in the NBS domain, especially in the P-loop, Kinase 2 and hydrophobic domains.

SuAT1 showed the highest level of DNA polymorphism of all genes in the study (π = 3.1%) and the greatest geographical sub-structuring with 71% of the molecular variation in the allelic dataset directly attributed to differences between Tunisian and Turkish alleles.

The low level of DNA polymorphism between cultivated genotypes has been described by many authors [ 9- 12].

The generally high level of DNA polymorphism in the genome of Solanum tuberosum is well documented [ 29, 33, 41, 42].

However, despite this low level of DNA polymorphism, wide phenotypic diversity is believed to exist [ 8].

This suggests that microsatellite DNA markers produce a higher level of DNA polymorphism than other DNA markers in cultivated peanut.

Although a large amount of phenotypic variation is conspicuous in this gene pool, only a limited level of DNA polymorphism between genotypes has been observed [ 10- 14].