Genetic Relationships and Variation among Biotypes of Dallisgrass (Paspalum dilatatum Poir.) and Related Species Using Random Amplified Polymorphic DNA Markers

  title={Genetic Relationships and Variation among Biotypes of Dallisgrass (Paspalum dilatatum Poir.) and Related Species Using Random Amplified Polymorphic DNA Markers},
  author={Rog{\'e}ria Beatriz Miz and Tatiana Teixeira de Souza-Chies},
  journal={Genetic Resources and Crop Evolution},
The genus Paspalum L. consists of more than 400 species. Around twenty-five informal groups of species are recognized in Paspalum and the Dilatata group is of special interest because its members are excellent potential forage grasses. Seventy-five germplasm accessions, representing 15 taxa, were analyzed using randomly amplified polymorphic DNA (RAPD). Polymorphisms were observed with twenty-two primers in the Dilatata group and 16 of those were analyzed. Four hundred and four different RAPD… 

Genetic diversity of the complex Paspalum notatum Flügge (Paniceae: Panicoideae)

Assessment of genetic variability of a bahiagrass collection in South America adds new information regarding the genetic diversity in P. notatum, contributing toward the biological knowledge of this species, and providing with subsides for future plant breeding and conservation programs.

Genetic Diversity Among Paspalum L. Species (Poaceae) Belonging to the Notata and Linearia Groups Based on Restriction Fragment Length Polymorphism Analyses

A new circumscription of the Notata and Linearia groups is proposed here in order to provide a more accurate delimitation of these groups and contribute to the taxonomy of Paspalum.

Evolutionary patterns in the Dilatata group (Paspalum, Poaceae)

The relationships hypothesized among the apomicts are congruent with a single origin of apomixis in the group which in turn would be coded by a non-recombining genome.

Phylogeny of Linearia and Notata groups of Paspalum L. (Poaceae, Panicoideae, Paniceae) and related species

This work uses a phylogenetic approach to study informal groups of Paspalum, using DNA sequences from ITS of nuclear rRNA, from chloroplast intergenic spacer psbA-trnH andchloroplast trnL intron to perform the analyses.

Variation among hexaploid Paspalum dilatatum Poir. regenerants from tissue culture

The common biotype of Paspalum dilatatum Poir. (dallisgrass) is a pentaploid obligate apomict and efforts to improve the grass have not been successful because of its asexual reproduction and

Genetic characterization of two traditional leafy vegetables ( Sesamum radiatum Thonn. ex Hornem and Ceratotheca sesamoides Endl.) of Benin, using flow cytometry and amplified fragment length polymorphism (AFLP) markers

Results from the study contributed to a better characterization of S. radiatum and C. sesamoides accessions and will help in defining both genetic resources conservation and breeding strategies.

Variation among hexaploid Paspalum dilatatum Poir

The common biotype of Paspalum dilatatum Poir. (dallisgrass) is a pentaploid obligate apomict and efforts to improve the grass have not been successful because of its asexual reproduction and

Utilização de microssatélites e RAPD na caracterização molecular de acessos de Paspalum urvillei Steudel

The genetic diversity among accesses of P. urvillei of Departamento de Plantas Forrageiras e Agrometeorologia of the College of Agronomy - UFRGS and to evaluate their use in selection programs provided significant information for designing crossing strategies of parental generations in breeding programs.

Chromosome numbers and ploidy levels of Paspalum species from subtropical South America (Poaceae)

Somatic chromosome numbers of 131 accessions belonging to 55 Paspalum species from subtropical South America have been determined and six ploidy levels were found among species with tetraploidy as the most frequent condition.

Gene Discovery and Molecular Marker Development, Based on High-Throughput Transcript Sequencing of Paspalum dilatatum Poir

Background Paspalum dilatatum Poir. (common name dallisgrass) is a native grass species of South America, with special relevance to dairy and red meat production. P. dilatatum exhibits higher forage



Genetic relationships and variation among ecotypes of seashore paspalum (Paspalum vaginatum) determined by random amplified polymorphic DNA markers.

Random amplified polymorphic DNA (RAPD) markers were used to assess genetic relationships and variation among ecotypes of the turfgrass seashore paspalum (Paspalums vaginatum Swartz) and the results illustrate genetic relationships among the 46 ecotypes, and between ecotypes and their geographical origins.

RAPD marker diversity within and divergence among species of Dendroseris (Asteraceae: Lactuceae).

Dendroseris represents an example where RAPD markers, because of their greater variability, provide a useful alternative to allozymes for assessing diversity in rare species endemic to oceanic islands and for resolving relationships among the species.

RAPD analysis reveals genetic variability among sexual and Apomictic Paspalum dilatatum poiret biotypes.

Overall RAPD markers were useful for assessing genetic variation among closely related P. dilatatum genotypes as well as generating putative X genome markers.

Genetic Variability of Lepidium meyenii and other Andean Lepidium Species (Brassicaceae) Assessed by Molecular Markers

None of the wild species was found to be diploid, which suggests that polyploidy has been an important adaptation to high altitude habitats in these species.

RAPD characterization of Brazilian barley (Hordeum vulgare ssp. vulgare) varieties

Thirteen varieties of Brazilian barley selected for malting qualities were analysed by RAPD (Random Amplified Polymorphic DNA), and many bands or combinations of bands which were responsible for the differentiation of all varieties were detected.

Detection of genetic variation between and within populations of Gliricidia sepium and G. maculata using RAPD markers

RAPDs provide a cost-effective method for the precise and routine evaluation of variability and may be used to identify areas of maximum diversity and are discussed in relation to the exploitation of multi-purpose tree species of the tropics.

Diversity within American cassava germ plasm based on RAPD markers

The weak genetic structure of cassava can be explained by the common practice of exchanging botanical material among small producers as well as by recombinations among genotypes.

Variabilidade isoenzimtica em prognies de bitipos apomticos de Paspalum dilatatum (Poaceae)

Analysis of the occurrence of variability among sib seedlings and endosperms of Paspalum dilatatum biotypes through gel electrophoresis suggests occurrence of sexual reproduction and can be indicative of genic segregation and suggests the existence of pseudogamy.

Genome Relationship and Reproductive Behavior of Intraspecific Paspalum dilatatum Hybrids: Yellow-Anthered x Uruguaiana

  • B. Burson
  • Biology
    International Journal of Plant Sciences
  • 1995
Meiotic chromosome pairing in Uruguaiana dallisgrass hybrids indicated that the biotypes have two homologous genomes, I and J, which comprise the yellow-anthered biotype (IIJJ), which has modified versions of the X genome.

Cytogenetics and Reproduction of Paspalum dasypleurum and Its Hybrids with P. urvillei and P. dilatatum Ssp. Flavescens

The ability of the hybrids to produce seed following backcrossing suggests that gene exchange through hybridization may be a feasible method for plant improvement among these species.