Navigation Links
Scientists decipher fruit tree genome for the first time
Date:5/14/2008

This release is available in Spanish.

A scientific group of the Universities of Illinois (USA), Georgia (USA), Hawaii (USA) and Nakai (China), among others, have deciphered for the first time fruit genomic sequence, in this case papaya (Carica papaya), according to the cover of the last issue of the prestigious journal Nature. One of the researchers is a scientist assigned to the group of Molecular Genetics of the Department of Genetics of the University of Granada

This new advance involves, after sequencing other plants genomes such as the sample species in biological research Arabidopsis thaliana, rice, poplar and vine, the fifth vegetal genome sequenced up to now, and the first one from a fruit tree. Besides, the authors have used in their analysis the SunUp transgenic variety, virus ringspot resistant (which represents a serious threat for this species), which means that this has been the first transgenic organism to be sequenced.

Rafael Navajas Prez, researcher of the Department of Genetics of the University of Granada, is part of the team made up by more than 85 scientists who have participated in this research supervised by doctors Ray Ming (University of Illinois), Andrew H. Paterson (University of Georgia) and Maqsudul Alam (University of Hawaii).

Papaya is a very important crop in great part of Latin America and the USA owing to its nutritional benefits and medical applications, and provides an annual income of about 130 million dollars only in the state of Hawaii. In Europe, this crop is experiencing a boom, and Spain, and specifically the Tropical Coast of Granada, is an important producer as a consequence of the particular climatic conditions of the area.

A model to research

Apart from the relevant commercial implications, due to its position in the tree of life and the recent discovering of sexual chromosomes in its genome, Carica papaya is an excellent study model to answer a series of interesting questions related to the evolutionary history of flower plants. From this discovery, the researchers have already identified that its genome contains fewer genes than that of the Arabidopsis (a small annual herb), in spite of being three times bigger than it. According to the researcher from Granada, the lack of recent phenomenon of gene duplication, frequent in angiosperms genomes, can be behind of this observation. Despite this, it has been detected a significant increase in the number of genes related to arboreal development, the deposition and removal of starch reserves, the attraction of agents responsible for spreading the seeds and the adaptation to the length of the day in a tropical climate.

Other important crops

Experts predict that this new genome will offer numerous advantages as a reference system for comparative genomics with other fruit trees, and will be the basis to study morphological, physiological, medicinal and nutritional properties of other plants belonging to the order of the Brassicales, where papaya is included, which includes economically important crops such as cabbage, cauliflower, whitewash brush, mustard or turnip. Likewise, they expect papaya to be a reference organism for the study of the evolution of sexual chromosomes in plants.

Dr Navajas Prez, who at present is working on the sequencing of the determinant region of the sex in the sexual chromosomes of papaya and whose research career has been focused on different aspects of plants sexual determination, intends, in a near future, to implement a research work in the UGR directed to sex early diagnosis in vegetal species of economic interest for Andalusia, as well as for the study of other molecular aspects of sex Biology in plants.


'/>"/>

Contact: Rafael Navajas Prez
rnavajas@uga.edu
706-254-5245
Universidad de Granada
Source:Eurekalert

Related biology news :

1. Scientists discover small RNAs that regulate gene expression and protect the genome
2. Argonne scientists use lasers to align molecules
3. Too hot to handle! Scientists identify heat sensing regulator
4. Scientists dig deeper into the genetics of schizophrenia by evaluating microRNAs
5. Scientists endure Arctic for last campaign prior to CryoSat-2 launch
6. Scientists discover why plague is so lethal
7. UF scientists discover compound that could lead to new blood pressure drugs
8. UIC scientists discover how some bacteria survive antibiotics
9. Scientists aim to boost world energy supplies -- with microbes!
10. Scientists determine drug target for the most potent botulinum neurotoxin
11. Scientists make chemical cousin of DNA for use as new nanotechnology building block
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2016)... DUBLIN , January 22, 2016 ... has announced the addition of the  ... to their offering. --> ... of the  "Global Behavioral Biometric Market ... --> Research and Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ...
(Date:1/20/2016)... , Jan. 20, 2016   MedNet Solutions ... the entire spectrum of clinical research, is pleased to ... MedNet,s significant achievements are the result of the company,s ... iMedNet eClinical , it,s comprehensive, easy-to-use and ... --> Key MedNet growth achievements in ...
(Date:1/13/2016)... --> --> ... report titled - Biometric Sensors Market - Global Industry Analysis, ... to the report, the global biometric sensors market was valued at ... US$1,625.8 mn by 2023, expanding at a CAGR of ... the biometric sensors market is expected to reach 1,799.6 ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... ... 08, 2016 , ... Bulk food product inspection systems are ... stages of the production process. Despite frequently inspecting loose product prior to packaging, ... such as sacks of dry powders. , Mettler-Toledo Product Inspection's brand-new white paper ...
(Date:2/8/2016)... , February 8, 2016 ... Genetics" or the "Company"), the ultra-rapid Point-Of-Care (POC) molecular diagnostics ... Mark its Chlamydia trachomatis (CT) test to be launched on ... IVD Directive (98/79/EC), the CT test is now cleared for ... --> The launch of the io® CT test ...
(Date:2/5/2016)... -- On Thursday, February 11, 2-1-1 San Diego ... and disaster services, and the Community Information Exchange ... coordination and service delivery for the community to better ... better connect service providers to the information they can ... has handled more than 2.5 million connections ...
(Date:2/4/2016)...  Sangamo BioSciences, Inc. (NASDAQ: SGMO ), the ... Edward Lanphier , Sangamo,s president and chief executive officer, ... ZFP Therapeutic ® development programs and an overview ... on Thursday, February 11, 2016, at the Leerink Partners ... is being held in New York ...
Breaking Biology Technology: