HOME >> BIOLOGY >> NEWS
Genetic snooze button governs timing of spring flowers

Boston -- In the long, dark days of winter, gardeners are known to count the days until spring. Now, scientists have learned, some plants do exactly the same thing.

Addressing scientists here today (Aug. 9) at a meeting of the American Society of Plant Biologists, University of Wisconsin-Madison researcher Richard Amasino described studies that have begun to peel back some of the mystery of how plants pace the seasons to bloom at the optimal time of year.

"Flowering at the right time is all about competition," says Amasino, Howard Hughes Medical Institute Professor and UW-Madison professor of biochemistry.

Amasino and his colleagues have studied, in particular, the behaviors of biennial plants, which require long periods of exposure to the cold to initiate flowering in the spring. What they have found reveals some of the complex interplay of genes and environment and provides hints that, one day, it may be possible to exert precise control over flowering, a process essential for plant reproduction and fruiting and that has enormous implications for agriculture.

Flowers are the reproductive organs of plants and are responsible for forming seeds and fruit. As their name implies, biennials complete their life cycles in two years, germinating, growing and overwintering the first year. The second year, the plants flower in the spring and die back in the fall.

That biennial strategy, Amasino explains, arose as flowering plants, which first evolved some 100 million years ago during the age of the dinosaurs, spread to fill the niches of nature. Spring blooming confers numerous advantages, not the least of which is leafing out and flowering before the competition.

But how do the plants know when to flower?

"If you carve out that niche, you need to get established in the fall, but you need to make darn sure you don't flower in the fall," Amasino says. In the case of biennials, "the plants can somehow me
'"/>

Contact: Richard Amasino
amasino@biochem.wisc.edu
608-265-2170
University of Wisconsin-Madison
9-Aug-2006


Page: 1 2 3

Related biology news :

1. Genetic variation helps to understand predisposition to schizophrenia
2. Genetic factors strongly shape how peers are chosen
3. Genetic analysis finds greater threat in frog-killing fungus
4. Genetic diversity in honeybee colonies boosts productivity
5. 2007-2008 Genzyme/ACMGF Clinical Genetics Fellowship In Biochemical Genetics award winner announced
6. Maynard Olson receives $500,000 Gruber Genetics Prize
7. Genetic defect links respiratory disease and congenital heart disease
8. Cell Press announces new partnership with the American Society of Human Genetics
9. Genetic fellow traveler discovered in Alzheimers
10. Genetic roots of bipolar disorder revealed by first genome-wide study of illness
11. Health disparities -- Genetics, society and race play an important role in access to healthcare

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


(Date:3/3/2020)... ... ... Amplify Surgical, Inc., today announces that the company reached the milestone of ... The landmark case was performed by Dr. Ali Najafi at Fresno Heart and Surgical ... changed the game for expandable interbodies. The ability to achieve an ALIF sized ...
(Date:3/2/2020)... PHILADELPHIA (PRWEB) , ... March 02, 2020 , ... Philadelphia ... Travis W. Bliss, Ph.D., J.D. has joined the firm as a Partner, and Stephany ... Bliss is an experienced patent attorney and will be a partner in the firm’s ...
(Date:2/28/2020)... ... February 28, 2020 , ... Meridian Clinical Research , a ... Excellence (ViE) award for Best Clinical Trial Site. Meridian is also the largest ... Clinical Trial Network award. These nominations were the result of two voting rounds, and ...
Breaking Biology News(10 mins):
(Date:3/10/2020)... , ... March 10, 2020 , ... Lifecycle Biotechnologies ... 13 acres in Cleburne, Texas to be used as a biopharmaceutical and biotechnology production ... headquarters and sales offices as well as its production and development hub. The company ...
(Date:3/3/2020)... ... March 03, 2020 , ... Frictionless ... and medical device industries, was recognized by INC. 5,000 on an annual list ... to note industry leaders greatly impacting their spheres of influence and experiencing considerable ...
(Date:2/28/2020)... ... February 26, 2020 , ... Designed primarily for ... with a dedicated controller, thus simplifying setup, streamlining integration, and optimizing workflow. Capable ... first of Fastec Imaging’s new HS Series cameras to be released. The HS ...
(Date:2/21/2020)... ... February 20, 2020 , ... ... perform complex, efficient and elegant chemistry. Humans have been increasingly successful in ... goals. , Through rapidly evolving technologies and strategies for modern molecular biology ...
Breaking Biology Technology:
Cached News: