Core collection is an ideal resource for genome-wide association studies (GWAS). A subcore collection is a subset of a core collection. A strategy was proposed for finding the optimal sampling percentage on plant subcore collection based on Monte Carlo simulation. A cotton germplasm group of 168 accessions with 20 quantitative traits was used to construct subcore collections. Mixed linear model...

The structure of relationship among subjects is an interesting topic in many social studies, especially phylogeny. The between-subject relationships are commonly measured by similarity or dissimilarity metrics and represented using a distance matrix. Based on this distance matrix, a tree can be constructed to characterize the overall structure of inferred relationships among all subjects. Curre...

background: garlic is a valuable medicinal plant with variability in desirable morphological and physiological characteristics. the analysis of genetic diversity plays an important role in breeding programs. the rapd technique could be very effective in detecting genetic variation in garlic.  objective: the objective of the present work was to detect molecular polymorphism among iranian garlic ...

Rhodiola sachalinensis is an endangered species with important medicinal value. We used inter-simple sequence repeat (ISSR) and methylation-sensitive amplified polymorphism (MSAP) markers to analyze genetic and epigenetic differentiation in different populations of R. sachalinensis, including three natural populations and an ex situ population. Chromatographic fingerprint was used to reveal HPL...

Objetivou-se identificar as variáveis morfométricas que contribuem para a dissimilaridade entre espécies Butia exilata Deble & Marchiori e lallemantii utilizando análise euclidiana. Para tanto, foram utilizados 11 genótipos da espécie B. exilata, proveniente do munícipio de Sarandi, RS (população 1) 33 provenientes dos municípios São Francisco Assis, 2), Manoel Viana, 3) Alegrete, 4). Foram...

A phylogenetic method is a consistent estimator of phylogeny if and only if it is guaranteed to give the correct tree, given that sufficient (possibly infinite) independent data are examined. The following methods are examined for consistency: UPGMA (unweighted pair-group method, averages), NJ (neighbor joining), MF (modified Farris), and P (parsimony). A two-parameter model of nucleotide seque...

The Aspergillus niger aggregate within the A. section Nigri is a group of black-spored aspergilli of great agro-economic importance whose well defined taxonomy has been elusive. Rep-PCR has become a rapid and cost-effective method for genotyping fungi and bacteria. In the present study, we evaluated the discriminatory power of a semi-automated rep-PCR barcoding system to distinguish morphotypic...

Advances in genotyping technologies have transformed the way breeding programs manage their genetic resources. The identification of single nucleotide polymorphisms (SNPs) can improve understanding diversity maize (Zea mays) inbred lines and classification into heterotic groups, which is useful determining certain crosses to obtain hybrids with higher yield performance. 293 was investigated 525...

a phenetic analysis of the 12 taxa or operational taxonomic units (otus) belonging to the three sections; genea, neobromus, and nevskiella of the genus bromus was performed. unweighted pair-group method using arithmetic averages (upgma) and weighted pair-group method using arithmetic averages (wpgma) clustering and factoriel method analyses were used to set the taxa apart. forty-four characters...