Navigation Links
New and improved tomato analyzer
Date:5/4/2009

WOOSTER, OHTomatoes come in a variety of sizes and shapes, making them the perfect subject to test shape-analyzing software. The Tomato Analyzer is "rapidly becoming the standard for fruit morphological characterizations," according to a study led by Marin Talbot Brewer of The Ohio State University's Department of Horticulture and Crop Science. Details of the team's latest Tomato Analyzer research were published in a recent issue of the Journal of the American Society for Horticultural Science.

Morphology studies the form and structure of organisms. Software such as the Tomato Analyzer aids in morphological research by providing accurate and objective measurements of fruit shape. The analysis is also more efficient for large numbers of subjects and can detect traits that are extremely difficult to quantify manually. The Tomato Analyzer uses mathematical descriptors to quantify various shape features based on the boundary of the fruit.

Morphometrics studies the quantitative analysis of the shape and size of a biological form using the position of and distance between landmarks. This method has been used to study variations, classifications, and evolutionary analyses, as well as genetic studies of animals and insects. Morphometric analysis is less biased and depends less on manual manipulation, but the results are abstract quantities. The Tomato Analyzer's results are more descriptive because they actually measure angles or include ratios that better explain the fruit shape. However, the Tomato Analyzer provides both methods in the same application, allowing the researcher to select the option that best suits the project's needs.

A main objective of the study was to investigate the quantitative trait loci (QTL), which are parts of the genetic code that control fruit shape. The QTL as determined by morphometric analysis and boundary analysis were then compared. A new set of measurements was added to the Tomato Analyzer software to calculate the area of the pericarp, septum, and placenta. These are internal segments of the fruit that help to explain the shape more thoroughly than the exterior silhouette alone.

In the 'Sausage' species of tomato, two loci were identified as controlling more than 50% of the internal shape index, which gives the tomato its elongated or "pear" shape. Visual observation supported that the software accurately measured the degree of pear shape. Additional tests to determine proximal end angle, the shape of the fruit nearest the stem, showed comparable results between the two methods. This adds to the software's versatility of measurements for researchers.

QTLs detected in 'Sausage' and 'Rio Grande' varieties of tomato overlapped significantly. Though most, if not all, of the QTL controlling fruit shape and size were identified using the Tomato Analyzer applications, morphometric analyses are an efficient way to investigate the various sizes and shapes of fruit. Because both types of analysis are available in the Tomato Analyzer, the software allows researchers to quickly note morphological variation with the morphometrics function and then delve more deeply into the details using the attribute function.


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert  

Related biology news :

1. Improved e-jet printing provides higher resolution and more versatility
2. In-vitro fertilization improved with 3-D/4-D-guided embryo transfer and new placement target
3. UCR researchers awarded nearly $1.7M to develop improved cowpea varieties
4. Physician-scientist urges improved drug regulation to ensure heart safety of non-heart drugs
5. Improved foam for varicose veins found to be safe in preliminary results from phase II trial
6. Chesapeake Bay ecosystem health remains poor, but slightly improved in 2007
7. Brain study may lead to improved epilepsy treatments
8. Lean and mean biomass-degrading fungus reveals capabilities for improved biofuel production
9. UF researchers develop improved gene therapy agent
10. Mobilizing white blood cells to the lung: New discovery could lead to an improved influenza vaccine
11. Improved estrogen reception may sharpen fuzzy memory
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New and improved tomato analyzer
(Date:4/4/2017)... YORK , April 4, 2017   EyeLock ... today announced that the United States Patent and Trademark ... patent broadly covers the linking of an iris image ... same transaction) and represents the company,s 45 th ... latest patent is very timely given the multi-modal biometric ...
(Date:3/30/2017)... 2017 The research team of The Hong ... fingerprint identification by adopting ground breaking 3D fingerprint minutiae recovery and ... speed and accuracy for use in identification, crime investigation, immigration control, ... ... A research team led ...
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... , ... ComplianceOnline’s Medical Device Summit is back for its 4th year. The ... Francisco, CA. The Summit brings together current and former FDA office bearers, regulators, industry ... officials from around the world to address key issues in device compliance, quality and ...
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the main ... people each year. Especially those living in larger cities are affected by air pollution ... of the most pollution-affected countries globally - decided to take action. , “I knew ...
(Date:10/10/2017)... CA (PRWEB) , ... October ... ... a development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, today ... of targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in collaboration ...
(Date:10/10/2017)... CRUZ, Calif. , Oct. 10, 2017 ... grant from the NIH to develop RealSeq®-SC (Single Cell), ... kit for profiling small RNAs (including microRNAs) from single ... Analysis Program highlights the need to accelerate development of ... "New techniques for measuring ...
Breaking Biology Technology: