Search Results

You are looking at 71 - 80 of 381 items for :

  • Refine by Access: All x
Clear All
Free access

Lisa Alexander

, 2010 ). Some effects of increasing ploidy level in woody ornamental species include darker green, thicker leaves and increased number of petals per flower in Rosa ( Kermani et al., 2003 ), thicker leaves and larger, more persistent flowers in

Free access

Mohammad Majdi, Ghasem Karimzadeh, Mohammad A. Malboobi, Reza Omidbaigi, and Ghader Mirzaghaderi

the identification of ploidy level by flow cytometry (FCM) (PAI; Partec, Münster, Germany); Rosa victoriana (2 n = 2 x = 14) was used as a standard plant. Nuclei were extracted from leaves according to Yokoya et al. (2000) . Leaf material from the

Free access

David M. Czarnecki II and Zhanao Deng

these objectives, progeny of commercial cultivars from self-pollination (SP) and OP were first analyzed for ploidy levels, followed by controlled pollinations among cultivars and breeding lines and ploidy analysis of their progeny. This report presents

Free access

Justin A. Schulze and Ryan N. Contreras

, there have been no reports of successful hybridization between P. lusitanica and P. laurocerasus . We believe this apparent sexual incompatibility is likely due, at least in part, to the difference in ploidy level. Prunus laurocerasus is a 22-ploid

Open access

David M. Czarnecki II and Zhanao Deng

lantana cultivars that are used in the landscape. Several researchers have attempted to understand the relationships between ploidy level and fruit or seed production in L. camara . Natarajan and Ahuja (1957) suggested that ploidy level would be an

Free access

Dave I. Thompson, Neil O. Anderson, and Johannes Van Staden

seedlings were untreated and were assumed to be diploid. Ploidy assessment. When seedlings had grown sufficiently to provide 0.3 g leaf tissue (6 to 12 weeks from transfer to the maturation medium), the nuclear DNA contents of treated and control

Free access

Kristina Košmrlj, Jana Murovec, and Borut Bohanec

main factors that affect haploid induction. Tested doses ranged between 25 and 400 Gy with the optimum found to be below 100 Gy. Confirmation of the ploidy level of regenerants was well described by chromosome counting, stomata and chloroplast

Free access

Hamidou F. Sakhanokho and M. Nurul Islam-Faridi

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

Thomas G. Ranney, Connor F. Ryan, Lauren E. Deans, and Nathan P. Lynch

, 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

Open access

Kenneth W. Leonhardt

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