Search Results

You are looking at 91 - 100 of 436 items for :

Clear All

microscope as described previously for stomatal parameter determination. Flow cytometry analysis. Ploidy analysis was performed on both control plants and progeny of the suspected tetraploid using flow cytometry. Young, unexpanded leaf tissues were collected

Free access

, and the Asian I. anisatum . Fewer interspecific hybrids exist and only I. floridanum × I. mexicanum selections are currently available in the horticultural trade. Additional data on cytogenetics, including chromosome numbers and ploidy, of taxa in

Free access

cells is measured. The theory behind this method of screening for changes in ploidy levels is simple. The cell volume of a plant is directly proportional to the amount of DNA present in the cell, so that doubling the amount of DNA, which occurs when

Open Access

Blueberries (family Ericaceae, species Vaccinium , commonly section Cyanococcus ) are a diverse taxonomic group, and blueberries currently in commercial production represent three major Vaccinium species and two ploidy levels: 4 x V

Free access

embryo). The number of filled seed was counted for a random subsample of 60 seed per plant. Then, the percent filled seed per plant was calculated. The ploidy level of a subset of seeds per cross ( Table 1 ) was determined by flow cytometry according to

Open Access

Cyanococcus . In attempting to cross section Cyanococcus with species of other sections, blueberry breeders typically have used plants with the same chromosome numbers to avoid the ploidy-level barrier in addition to other genetic barriers, which might

Free access

were to confirm the ploidy level of the androgenic genotypes by flow cytometry; to confirm the zygosity state of the androgenic genotypes by SSR markers; to analyze S -alleles of the androgenic genotypes by the specific polymerase chain reaction (PCR

Free access

size estimation ( Leitch and Bennett, 2007 ); however, DAPI is acceptable for relative estimation and ploidy determination as used in the current study ( Parris et al., 2010 ). Chromosome counts are reported for six species ( Table 2 ; Fig. 1A

Free access
Authors: and

provided by tetraploid parents combines with a gamete containing one set of chromosomes provided by diploid pollen and forms a triploid zygote ( Acquaah, 2007 ). After identification of ploidy levels from induction treatments, diploid, triploid, and

Free access

followed by the processes of validation. Somatic hybrids have been identified first by the complementary and/or intermediate morphology of regenerants followed by confirmation of ploidy level, and finally molecular markers are used to confirm the presence

Free access