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:5/3/2016)... 3, 2016  Neurotechnology, a provider of high-precision ... Automated Biometric Identification System (ABIS) , a complete ... MegaMatcher ABIS can process multiple complex biometric transactions ... of fingerprint, face or iris biometrics. It leverages ... and MegaMatcher Accelerator , which have been ...
(Date:4/28/2016)... 28, 2016 First quarter 2016:   ... compared with the first quarter of 2015 The gross ... M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... is unchanged, SEK 7,000-8,500 M. The operating margin for ...
(Date:4/26/2016)... -- Research and Markets has announced the ...  report to their offering.  , ,     (Logo: ... forecast the global multimodal biometrics market to grow ... 2016-2020.  Multimodal biometrics is being implemented ... healthcare, BFSI, transportation, automotive, and government for controlling ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... -- The Prostate Cancer Foundation (PCF) is pleased to announce 24 new ... prostate cancer. Members of the Class of 2016 were selected from a pool ... Read More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... ... 2016 , ... Supplyframe, the Industry Network for electronics hardware ... . Located in Pasadena, Calif., the Design Lab’s mission is to bring together ... built and brought to market. , The Design Lab is Supplyframe’s physical representation ...
(Date:6/23/2016)... 23, 2016 Apellis Pharmaceuticals, Inc. today ... trials of its complement C3 inhibitor, APL-2. The ... ascending dose studies designed to assess the safety, ... injection in healthy adult volunteers. Forty ... a single dose (ranging from 45 to 1,440mg) ...
(Date:6/23/2016)... On Wednesday, June 22, 2016, the ... the Dow Jones Industrial Average edged 0.27% lower to finish ... 0.17%. Stock-Callers.com has initiated coverage on the following equities: Infinity ... NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... ). Learn more about these stocks by accessing their free ...
Breaking Biology Technology: