Crested wheatgrass [Agropyron cristatum L. (Gaertn.)] is an important cool-season forage grass widely used for early spring grazing. However, the genomic resources for this non-model plant are still lacking. Our goal was to generate the first set of next generation sequencing data using the genotyping-by-sequencing technique. A total of 272 crested wheatgrass plants representing seven breeding ...

Odontarrhena bertolonii is an endemic serpentine species of Tuscany and Liguria a model system for nickel-hyperaccumulation research in plants. Phenotypic, genetic karyological variability between populations was previously detected, but existence distribution cytotypes unknown. Accordingly, we examined ploidy level eight from the range tested polyploid fitness hypothesis by analysing relations...

The diversity of the Vanda orchid is one advantages plants that are used to make new hybrids. genus has a primary chromosome number (x) = 19 and varies in ploidy level. This study aims identify orchid’s karyotype pattern level through flow cytometry. materials orchids celebica, dearei, its hybrids V. dearei x celebica dearei. results showed chromosomes 2n 2x 40, =38, hybrid 38, 38. 17m+2sm, 40 ...

Peanut is a major oilseed crop worldwide. In the Brazilian peanut production, silvering thrips and red necked peanut worm are the most threatening pests. Resistant varieties are considered an alternative to pest control. Many wild diploid Arachis species have shown resistance to these pests, and these can be used in peanut breeding by obtaining hybrid of A and B genomes and subsequent polyploid...

indole ahloids of vinca species are valued greatly in medical sciences, one reason being for their use as powerful anticancer agents. there are four species of vinca in iran: v. rosea, v. major, v. minor and v. herbacea. in previous investigations, we found that these plants have considerable alkaloid similarity (58.8- 75%). therefore, chromosomic and electrophuretic studies followed after inve...

chromosome counting was performed in nine populations of achillea tenuifolia lam and eight populations of a. bieberestinii afan (asteraceae) collected from hamedan and kermanshah provinces in the west of iran. chromosome numbers in both species varied from 2n=2x=18 to 2n=4x=36. some populations of both species showed (2n=4x=36) chromosome number that is the first report as polyploidy levels. an...

In 1950, G. Ledyard Stebbins devoted two chapters of his book Variation and Evolution in Plants (Columbia Univ. Press, New York) to polyploidy, one on occurrence and nature and one on distribution and significance. Fifty years later, many of the questions Stebbins posed have not been answered, and many new questions have arisen. In this paper, we review some of the genetic attributes of polyplo...

The world is now facing many severe problems due to increasing global demands for already limiting food and energy resources. Plant reproduction is crucial not only for producing offspring but also for improving crop quality and yield. Moreover, plant reproduction entails complex growth and developmental processes, which offer various opportunities for elucidating fundamental principles in biol...