Dear friends and colleagues,
I am really sorry for my silence. The blog has not been updated for a long time (December 2008), and this is mainly due to my lack of time justified by my new position - since February 2009 I've returned to my country (Portugal), as an Assistant Professor in the Department of Life Sciences (former Department of Botany) of the University of Coimbra, and together with the preparation and giving of classes, I've been very busy with project's submission in order to obtain some funds to establish a new lab on Plant Evolutionary Biology (especially, genome evolution). To those interested, my new webpage can be found in this link.
Also, I would like to take this opportunity to say that we are looking for dynamic and enthusiastic Master, PhD and Post-Doc researchers interested in joining our young team and continuing their studies in this promising area of research. Those interested should contact me at: firstname.lastname@example.org
I promise you that I will try to find some time to continue this blog and to post some of its regular sections.
Monday, September 21, 2009
Dear friends and colleagues,
Wednesday, December 03, 2008
Tuesday, December 02, 2008
Palomino G, Hernandez LT, Torres ED. Nuclear genome size and chromosome analysis in Chenopodium quinoa and C. berlandieri subsp. nuttalliae. Euphytica (2008) 164: 221-230.
Robert ML, Lim KY, Hanson L, Sanchez-Teyer F, Bennett MD, Leitch AR, Leitch IJ. Wild and agronomically important Agave species (Asparagaceae) show proportional increases in chromosome number, genome size, and genetic markers with increasing ploidy. Botanical Journal of the Linnean Society (2008) 158: 215-222.
Achigan-Dako EG, Fuchs J, Ahanchede A, Blattner FR. Flow cytometric analysis in Lagenaria siceraria (Cucurbitaceae) indicates correlation of genome size with usage types and growing elevation. Plant Systematics and Evolution (2008) 276: 9–19.
Costa IR, Dornelas MC, Forni-Martins ER. Nuclear genome size variation in fleshy-fruited Neotropical Myrtaceae. Plant Systematics and Evolution (2008) 276: 209–217.
Rosado TB, Clarindo WR, Carvalho CR. An integrated cytogenetic, flow and image cytometry procedure used to measure the DNA content of Zea mays A and B chromosomes. Plant Science 176 (2009) 154–158.
Temsch EM, Greilhuber J, Hammett KRW, Murray BG. Genome size in Dahlia Cav. (Asteraceae–Coreopsideae). Plant Systematics and Evolution (2008) 276:157–166.
Arvanitis L, Wiklund C, Ehrlen J. Plant ploidy level influences selection by butterfly seed predators. Oikos (2008) 117: 1020-1025.
Singliarová B, Chrtek J, Mráz P. Loss of genetic diversity in isolated populations of an alpine endemic Pilosella alpicola subsp. ullepitschii: effect of long-term vicariance or long-distance dispersal? Plant Systematics and Evolution (2008) 275: 181-191.
Fortune PM, Schierenbeck K, Ayres D, Bortolus A, Catrice O, Brown S, Ainouche ML. The enigmatic invasive Spartina densiflora: A history of hybridizations in a polyploidy context. Molecular Ecology (2008) 17: 4304-4316.
Ricca M, Beecher FW, Boles SB, Temsch E, Greilhuber J, Karlin EF, Shaw AJ. . American Journal of Botany (2008) 95: 1606-1620.
Perera PIP, Perera L, Hocher V, Verdeil JL, Yakandawala DMD, Weerakoon LK. Use of SSR markers to determine the anther-derived homozygous lines in coconut. Plant Cell Reports (2008) 27: 1697-1703.
Astarini IA, Plummer JA, Lancaster RA, Yan G. Identification of 'Sib' plants in hybrid cauliflowers using microsatellite markers. Euphytica (2008) 164: 309-316.
Kaushal P, Malaviya DR, Roy AK, Pathak S, Agrawal A, Khare A, Siddiqui SA. Reproductive pathways of seed development in apomictic guinea grass (Panicum maximum Jacq.) reveal uncoupling of apomixis components. Euphytica (2008) 164: 81-92.
Bagniewska-Zadworna A. The root microtubule cytoskeleton and cell cycle analysis through desiccation of Brassica napus seedlings. Protoplasma (2008) 233:177–185.
Zonno MC, Vurro M, Lucretti S, Andolfi A, Perrone C, Evidente A. Phyllostictine A, a potential natural herbicide produced by Phyllosticta cirsii: In vitro production and toxicity. Plant Science (2008) 175: 818–825.
Friday, November 28, 2008
You can get it here LINK.
Tuesday, November 25, 2008
The Wordle (http://www.wordle.net/) of the blog. This utility generates word clouds from the text that is inserted. In this case the whole blog. Unfortunately I've had little time to update the blog recently. I will try to catch up soon. Sorry....
Friday, November 07, 2008
Can it be two in a row? It is indeed. Two weeks ago de Smet and co-authors published a study entitled "Receptor-Like Kinase ACR4 Restricts Formative Cell Divisions in the Arabidopsis Root" on Science. It is a very interesting application of flow sorting of plant perycicle cells undergoing lateral root initiation to identify the receptor-like kinase ACR4 of Arabidopsis.
One of the authors told me that this important and interesting study resulted from a fruitful collaboration between Philip Benfey's group from the Duke Institute for Genome Sciences & Policy, Duke University and the Root Development Group in Ghent headed by Tom Beeckman with cell sorting being done in both Departments.
Congratulations to all the persons involved in such groundbreaking investigation.
During the development of multicellular organisms, organogenesis and pattern formation depend on formative divisions to specify and maintain pools of stem cells. In higher plants, these activities are essential to shape the final root architecture because the functioning of root apical meristems and the de novo formation of lateral roots entirely rely on it. We used transcript profiling on sorted pericycle cells undergoing lateral root initiation to identify the receptor-like kinase ACR4 of Arabidopsis as a key factor both in promoting formative cell divisions in the pericycle and in constraining the number of these divisions once organogenesis has been started. In the root tip meristem, ACR4 shows a similar action by controlling cell proliferation activity in the columella cell lineage. Thus, ACR4 function reveals a common mechanism of formative cell division control in the main root tip meristem and during lateral root initiation.