HOME >> BIOLOGY >> NEWS
Plants defy Mendel's inheritance laws, may prompt textbook changes

WEST LAFAYETTE, Ind. - Contrary to inheritance laws the scientific world has accepted for more than 100 years, some plants revert to normal traits carried by their grandparents, bypassing genetic abnormalities carried by both parents.

These mutant parent plants apparently have hidden templates containing genetic information from the preceding generation that can be transferred to their offspring, even though the traits aren't evident in the parents, according to Purdue University researchers. This discovery flies in the face of the scientific laws of inheritance first described by Gregor Mendel in the mid-1800s and still taught in classrooms around the world today.

"This means that inheritance can happen more flexibly than we thought in the past," said Robert Pruitt, a Purdue Department of Botany and Plant Pathology molecular geneticist. "While Mendel's laws that we learned in high school still are fundamentally correct, they're not absolute.

"If the inheritance mechanism we found in the research plant Arabidopsis exists in animals, too, it's possible that it will be an avenue for gene therapy to treat or cure diseases in both plants and animals."

The study is published in the March 24 issue of the journal Nature.

Pruitt and collaborator Susan Lolle found that Arabidopsis in which each parent plant had two copies of a mutant gene could produce progeny that didn't show the parents' deformity, but rather were normal like the grandparents. Under Mendelian laws, the offspring should have shown the same mutation.

The first clue that the classic inheritance rules didn't always apply was the discovery of normal flowers on some offspring of mutant plants. In the deformed parents, the flowers were fused into tight balls. But in the grandparents and 10 percent of the grandchildren, the buds become 1-millimeter-long, bright white flowers that fully opened and radiated out from the center of a cluster.

"If you take this mu
'"/>

Contact: Susan A. Steeves
ssteeves@purdue.edu
765-496-7481
Purdue University
22-Mar-2005


Page: 1 2 3

Related biology news :

1. Plants recognize their siblings, biologists discover
2. Plants that produce more vitamin C may result from UCLA-Dartmouth discovery
3. Plants tag insect herbivores with an alarm
4. Plants with male and bisexual flowers on the same plant are better mothers
5. Plants do not emit methane
6. Plants management of nutrient suggests environmental remedies
7. Plants point the way to coping with climate change
8. Plants, plasmids and possibilities -- Methods permit functional gene studies in plants
9. Plants give up answers in the war on bacteria
10. Plants tell caterpillars when its safe to forage
11. Plants role in global warming re-examined in ORNL Science paper

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... 30, 2017 The research team of The ... (3D) fingerprint identification by adopting ground breaking 3D fingerprint minutiae recovery ... of speed and accuracy for use in identification, crime investigation, immigration ... ... A research team ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. Mohamed Anwar ... prestigious international IAIR Award for the most innovative high security ePassport and ... ... Maldives Immigration Controller General, Mr. Mohamed ... the right) have received the IAIR award for the "Most innovative high ...
(Date:3/22/2017)... 21, 2017 Optimove , provider ... retailers such as 1-800-Flowers and AdoreMe, today announced ... and Replenishment. Using Optimove,s machine learning algorithms, these ... and replenishment recommendations to their customers based not ... of customer intent drawn from a complex web ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... ... June 22, 2017 , ... ... to clients throughout the biopharma and life sciences industries, continue to be in ... seeing. Tunnell’s Kip Wolf will be speaking on “The State of Information Governance ...
(Date:6/22/2017)... ... June 22, 2017 , ... Charm Sciences, Inc. is pleased ... test was determined to be appropriate as a screening test at dairies and farms ... Charm EZ system, and the Charm EZ Lite system. These systems are a combination ...
(Date:6/20/2017)... ... June 20, 2017 , ... HorizonScan ... adulterants which pose the most likely threat to their products at the annual ... , IFT's annual food expo attracts over 20,000 attendees representing food science ...
(Date:6/20/2017)... ... ... Do More with OHAUS , With the launch of the new laboratory equipment ... to extending its expertise across the entire laboratory to a range of life science ... for its customers to 'Do More' in the lab. , Efficiency and Safety ...
Breaking Biology Technology:
Cached News: