Journal ArticleDOI
Virus Resistant Papaya Plants Derived from Tissues Bombarded with the Coat Protein Gene of Papaya Ringspot Virus
Maureen M. M. Fitch,Maureen M. M. Fitch,Richard M. Manshardt,Dennis Gonsalves,Jerry L. Slightom,John C. Sanford +5 more
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TLDR
An efficient gene transfer system utilizing microprojectile-mediated transformation of 2,4-D-treated immature zygotic embryos with a plasmid construction that contains the neomycin phosphotransferase II and β-glucuronidase genes flanking a PRV cp gene expression cassette is reported.Abstract:
Papaya ringspot virus (PRV) is a serious disease of papaya (Carica papaya L.) that has only been partially controlled by conventional methods. An alternative control method is coat protein-mediated protection (CPMP) through the transfer and expression of the PRV coat protein (cp) gene in papaya. We report an efficient gene transfer system utilizing microprojectile-mediated transformation of 2,4-D-treated immature zygotic embryos with a plasmid construction that contains the neomycin phosphotransferase II (NPTII) and β-glucuronidase (GUS) genes flanking a PRV cp gene expression cassette. Putative transgenic RO papaya plants, regenerated on kanamycin-containing medium, were assayed for GUS and PRV coat protein expression, for the presence of NPTII and PRV cp genes [with the polymerase chain reaction (PCR) and genomic blot hybridization analysis], and for PRV cp gene transcripts by Northern analysis. Four RO transgenic plant lines that contained the PRV cp gene showed varying degrees of resistance to PRV, and one line appeared to be completely resistant. These results represent the first demonstration that CPMP can be extended to a tree species such as papaya.read more
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Journal ArticleDOI
The draft genome of the transgenic tropical fruit tree papaya (Carica papaya Linnaeus)
Ray Ming,Shaobin Hou,Yun Feng,Qingyi Yu,Alexandre Dionne-Laporte,Jimmy H. Saw,Pavel Senin,Wei Wang,Benjamin V. Ly,Kanako L. T. Lewis,Steven L. Salzberg,Lu Feng,Matthew Jones,Rachel L. Skelton,Jan E. Murray,Cuixia Chen,Wubin Qian,Junguo Shen,Peng Du,Moriah Eustice,Eric J. Tong,Haibao Tang,Eric Lyons,Robert E. Paull,Todd P. Michael,Kerr Wall,Danny W. Rice,Henrik H. Albert,Ming Li Wang,Yun J. Zhu,Michael C. Schatz,Niranjan Nagarajan,Ricelle A. Acob,Peizhu Guan,Andrea Blas,Ching Man Wai,Christine M. Ackerman,Yan Ren,Chao Liu,Jianmei Wang,Jianping Wang,Jong Kuk Na,Eugene V. Shakirov,Brian J. Haas,Jyothi Thimmapuram,David R. Nelson,Xiyin Wang,John E. Bowers,Andrea R. Gschwend,Arthur L. Delcher,Ratnesh Singh,Jon Y. Suzuki,Savarni Tripathi,Neupane Kabi Raj,Hairong Wei,Beth Irikura,Maya Devi Paidi,Ning Jiang,Wenli Zhang,Gernot G. Presting,Aaron J. Windsor,Rafael Navajas-Pérez,Manuel J. Torres,F. Alex Feltus,Brad W. Porter,Yingjun Li,A. Max Burroughs,Ming-Cheng Luo,Lei Liu,David A. Christopher,Stephen M. Mount,Paul H. Moore,Tak Sugimura,Jiming Jiang,Mary A. Schuler,Vikki Friedman,Thomas Mitchell-Olds,Dorothy E. Shippen,Claude W. dePamphilis,Jeffrey D. Palmer,Michael Freeling,Andrew H. Paterson,Dennis Gonsalves,Lei Wang,Maqsudul Alam +84 more
TL;DR: Papaya offers numerous advantages as a system for fruit-tree functional genomics, and this draft genome sequence provides the foundation for revealing the basis of Carica’s distinguishing morpho-physiological, medicinal and nutritional properties.
Journal ArticleDOI
Genetic strategies for improving crop yields
Julia Bailey-Serres,Julia Bailey-Serres,Jane E. Parker,Elizabeth A. Ainsworth,Giles E. D. Oldroyd,Julian I. Schroeder +5 more
TL;DR: The potential of plant sciences to address post-Green Revolution challenges in agriculture is considered and emerging strategies for enhancing sustainable crop production and resilience in a changing climate are explored.
Journal ArticleDOI
Control of papaya ringspot virus in papaya: a case study.
TL;DR: This review focuses on efforts to control the destructiveness of the disease caused by PSRV in Hawaii, starting from the use of cross protection to parasite-derived resistance with transgenic papaya expressing thePSRV coat protein gene.
Journal ArticleDOI
Mutation induction and tissue culture in improving fruits
TL;DR: Positive achievement recorded in other species seem to support the hypothesis that in vitro mutation induction has high potential also for fruit improvement, and the possible contribution of a well-pondered and coordinated use of the numerous mutation induction, mutant selection, and field validation procedures available to advances in fruit breeding is discussed.
Journal ArticleDOI
Sex-Determining Mechanisms in Land Plants
Milos Tanurdzic,Jo Ann Banks +1 more
TL;DR: Sex determination is a process that leads to the physical separation of male and female gamete-producing structures to different individuals of a species.
References
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Book
Molecular Cloning: A Laboratory Manual
TL;DR: Molecular Cloning has served as the foundation of technical expertise in labs worldwide for 30 years as mentioned in this paper and has been so popular, or so influential, that no other manual has been more widely used and influential.
Journal ArticleDOI
A revised medium for rapid growth and bio assays with tobacco tissue cultures
Toshio Murashige,Folke Skoog +1 more
TL;DR: In vivo redox biosensing resolves the spatiotemporal dynamics of compartmental responses to local ROS generation and provide a basis for understanding how compartment-specific redox dynamics may operate in retrograde signaling and stress 67 acclimation in plants.
Journal ArticleDOI
A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity
TL;DR: A technique for conveniently radiolabeling DNA restriction endonuclease fragments to high specific activity is described, and these "oligolabeled" DNA fragments serve as efficient probes in filter hybridization experiments.
A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity
TL;DR: In this article, a technique for conveniently radiolabeling DNA restriction endonuclease fragments to high specific activity is described, where DNA fragments are purified from agarose gels directly by ethanol precipitation and are then denatured and labeled with the large fragment of DNA polymerase I, using random oligonucleotides as primers.
Journal ArticleDOI
Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase
Randall Keichi Saiki,David H. Gelfand,Susanne Stoffel,Stephen J. Scharf,Russell Higuchi,Glenn Thomas Horn,Kary B. Mullis,Henry A. Erlich +7 more
TL;DR: A thermostable DNA polymerase was used in an in vitro DNA amplification procedure, the polymerase chain reaction, which significantly improves the specificity, yield, sensitivity, and length of products that can be amplified.
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