Sentences with phrase «flowering plant evolution»

Not exact matches

This mechanism did not have to be invented at the time of the origins of the flower: it was simply inherited and reused by the plant, a process that is often at work in evolution.

The researchers also reconstructed what flowers looked like at all the key divergences in the flowering plant evolutionary tree, including the early evolution of monocots (e.g., orchids, lilies, and grasses) and eudicots (e.g., poppies, roses, and sunflowers), the two largest groups of flowering plants.

However, flowering plants arose only about 140 million years ago, quite late in the evolution of plants, toward the end of the age of the dinosaurs, but since then have diversified spectacularly.

Glistening in the humid enclosure are species representing key events during 500 million years of plant evolution — from primitive liverworts and velvety mosses through horsetails, ferns, and conifers, on up to the flowering plants.

In addition to its utility in retrospective studies of the evolution of flowering plants, the Amborella genome sequence offers insights into the history and conservation of Amborella populations.

This work and studies of flowering plants, which are also quite diverse, is forcing a rethink about just how genome duplications influence evolution.

Joseph Williams, an associate professor at the University of Tennessee, has had a long - standing interest in the reproductive biology of flowering plants, and is particularly interested in the evolution of development of ancient flowering plants.

«Because of Amborella's pivotal phylogenetic position, it is an evolutionary reference genome that allows us to better understand genome changes in those flowering plants that evolved later, including genome evolution of our many crop plants — hence, it will be essential for crop improvement,» stressed Doug Soltis of the University of Florida.

The fossil find, an ancient relative of today's bleeding hearts, poses a new puzzle in the study of plant evolution: did Earth's dominant group of flowering plants evolve along with its distinctive pollen?

Settling the debate over the first flower will take a bigger database and more - sophisticated models, says Wenheng Zhang, who studies plant evolution at Virginia Commonwealth University in Richmond.

Thus, SWEET9 may have been crucial for the evolution of flowering plants that attract and reward pollinators with sweet nectar.

This research reveals a new type of cell fusion that is initiated to destroy a particular cell, and enlightens the evolution of sexual reproduction in flowering plants.

Their work also suggests that the components were recruited for this purpose early during the evolution of flowering plants.

In the new study, Hervé Sauquet of the Université Paris - Sud in Orsay, France, and colleagues combined models of flower evolution with a database of features for 792 species of flowering plants, and data from the fossil record.

Amborella trichopoda is understood to be the most basal extant flowering plant and its genome is anticipated to provide insights into the evolution of plant life on Earth (see the Perspective by Adams).

«The pattern of co-occurring species remained stable through the evolution of land organisms from the earliest tetrapods through dinosaurs, flowering plants and mammals,» said Anna K. Behrensmeyer, a paleobiologist with the Smithsonian's Museum of Natural History and a co-author of the study.

Franks, S. J., S. Sim, and A. E. Weis, 2007: Rapid evolution of flowering time by an annual plant in response to a climate fluctuation.

After over three billion years of evolution in the oceans, multi-cellular life — beginning with green algae, fungi, and plants (liverworts, mosses, ferns, then vascular and flowering plants)-- began adapting to land habitats by creating a new «hypersea,» and adding anomalous shades of green to Earth's coloration more than 472 million years ago (Matt Walker, BBC News, October 12, 2010; and Qiu et al, 1998 — more on the evolution of photosynthetic life and plants on Earth).

(PhysOrg.com)-- Researchers from the University of Florida and six other institutions have unlocked some of the key foundations for the evolution of seed and flowering plants.

As in the flowering plants, the evolution of the large genome sizes of gymnosperms involved both polyploidy and repetitive element activity.

Abstract Polyploidy is a common mode of speciation and evolution in angiosperms (flowering plants).

Vice President: Charlie Scutt Location: France Institute: Ecole Normale Superieure de Lyon Research Interests: The origin and evolution of the carpel - the unique female reproductive organ whose presence defines the flowering plants.

In collaboration with colleagues in Mexico last year, we found that these same genes control various aspects of maternal reproduction, providing remarkable insight into the evolution of reproductive strategy in flowering plants,» he explained.

«Genes required for the production of small RNA in seeds were at the very top of the list of genes responsible for the evolution of flowering plants from cone - bearing plants.

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Franks, S. J., S. Sim, and A. E. Weis, 2007: Rapid evolution of flowering time by an annual plant in response to a climate fluctuation.