Search Results

You are looking at 1 - 10 of 1,375 items for :

  • Refine by Access: All x
Clear All
Open access

Ying Yang, Xian-Ge Hu, Bingsong Zheng, Yue Li, Tongli Wang, Anket Sharma, Huwei Yuan, and Jian-Feng Mao

nucleotides (nt) in length, which regulate target gene expression via the RNA interference pathway at translational repression or posttranscriptional degradation stage ( Lagos-Quintana et al., 2001 ). The important miRNA roles have been discovered in

Free access

Whitney D. Phillips, Thomas G. Ranney, Darren H. Touchell, and Thomas A. Eaker

unreduced gametes ( Ramsey and Schemske, 1998 ; Rounsaville et al., 2011 ). Flow cytometric screening of seeds and/or seedlings can often elucidate these reproductive pathways ( Eeckhaut et al., 2005 ; Matzk et al., 2000 ). Diploid plants, with standard

Free access

Irene E. Palmer, Thomas G. Ranney, Nathan P. Lynch, and Richard E. Bir

pathways and occurrence of apomixis would provide valuable information for both breeding and commercial propagation of Rudbeckia . The objectives of this research were to determine ploidy levels and relative DNA contents of selected species and cultivars

Free access

Todd J. Rounsaville, Darren H. Touchell, and Thomas G. Ranney

; Ramsey and Schemske, 1998 ; Sears, 1953 ). Determination of 2C genome size of progeny from triploid parents can elucidate the reproductive pathway by which seedlings originated ( Doležel and Bartos, 2005 ). Development of new triploid M. sinensis may

Open access

Kai-Xiang Li, Kai Liu, Yingying Chen, Xiaolu Huang, Wenhui Liang, Baocai Li, Yingbai Shen, and Haiying Liang

et al., 2020 ; Gao et al., 2020 ; Shen et al., 2020 ). Therefore, there is substantial interest in understanding the flavonoid metabolism. Flavonoids are synthesized through a complex pathway that has largely been found in Arabidopsis thaliana

Free access

Hening Hu and Gary A. Couvillon

Abbreviations: NADP, nicotinamide adenine dinucleotide phosphate; ppp, pentose phosphate pathway; TU, thiouria. A contribution of the Georgia Agricultural Experiment Station, College Station, Athens. This research was supported by state and Hatch

Free access

Zejin Zhang, Dongxian He, Genhua Niu, and Rongfu Gao

The photosynthetic pathways of C3, C4, and CAM are known to have different photosynthetic properties ( Larcher, 1995 ; Nobel, 1991 ). Although the dry matter accumulation rate of CAM plants is lower than that of C3 and C4 plants, CAM plants have

Full access

Kang-Di Hu, Xiao-Yue Zhang, Sha-Sha Wang, Jun Tang, Feng Yang, Zhong-Qin Huang, Jing-Yu Deng, Si-Yuan Liu, Shang-Jun Zhao, Lan-Ying Hu, Gai-Fang Yao, and Hua Zhang

family modulates metabolic pathways involved in fruit ripening and senescence, chlorophyll degradation, fruit softening, and changes in aromas ( De Boer et al., 2011 ; Licausi et al., 2013 ; Qi et al., 2011 ). Because ethylene is the key phytohormone

Free access

Marko Maras, Jelka Šuštar-Vozlič, Wolfgang Kainz, and Vladimir Meglič

genetic diversity of local cultivars of P. vulgaris are of fundamental importance, both for management of genetic resources and improvement of our understanding of the pathways of dissemination and the evolution of this species in Europe ( Angioi et al

Free access

Courtney A. Weber and William Boone

The role of plant pigments in human health has been under intense scrutiny recently. Anthocyanin pigments have been shown to be powerful antioxidants and may contribute to other areas of human health. In red and black raspberry, Rubus idaeus and Rubus occidentalis, respectively, no less than eight different anthocyanin pigments have been identified. However, the genetics controlling the presence and ratios of the different pigments is poorly understood. Various researchers have identified four loci that impart fruit pigment deficiencies and three loci that affect the pigment ratios. The underlying gene function of these loci is not known. Efforts are under way to map two pigment deficiency loci in red raspberry using bulked segregant analysis. Screening with 800 random primers has produced two markers with >90% and two with >80% correlation to one loci. For the other loci, 10 markers with >80% correlation have been identified. Mapping is ongoing with the first linkage map for raspberry to be presented. Populations to test allelism between sources of pigment deficiency are being evaluated for further mapping of loci of the anthocyanin production pathway. Data on cloning of genes in the anthocyanin pathway based on database sequences with degenerative primers for further elucidation a anthocyanin production in raspberry will be presented.