Monocots without borders Monocotiledóneas sin fronteras

Monocots without borders. Monocotiledóneas sin fronteras
Jueves 11 de diciembre de 2008
Auditorio UNIRA, Jardín Botánico Francisco Javier Clavijero
Km 2.5 carretera antigua a Coatepec 351, Congregación El Haya, Xalapa, Ver.

Programa
8:30-9:00 Registro y bienvenida
9:00-9:25 Monocots and the AToL initiative (Assembling the Tree of Life). Dennis Stevenson. New York Botanical Garden.
9:30-9:55 Filogenia molecular y evolución estructural en Araceae. Lidia I. Cabrera y Gerardo
A. Salazar. Instituto de Biología, Universidad Nacional Autónoma de México.
10:00-10:25 Phylogeny of Cocoseae subtribe Attaleinae (Areceaceae) based on eight WRKY transcription factor loci. Alan Meerow. United States Department of Agriculture.
10:30-10:55 Filogenia de Myrmecophila (Orchidaceae). Germán Carnevali. Centro de Investigación Científica de Yucatán.
11:00 Coffe break
11:30-11:55 Morphological convergence in Tigridieae (Iridaceae). Aarón Rodríguez. CUCBA, Universidad de Guadalajara
12:00-12:25 Relaciones filogenéticas en Agavaceae s.str., inferidas de ADN nuclear, cloroplasto
y morfología. Gerardo A. Salazar, Abisaí García y Eloy Solano. Universidad Nacional Autónoma de México.
12:30-12:55 Phylogeny and biogeography of Allium. Chelsea Specht. University of California,
Berkeley.
13:00 Lunch
14:30-14:55 The Milla clade (Themidaceae): Behria and Bessera circumscription. Etelvina Gándara and Victoria Sosa. Instituto de Ecología A. C.
15:00-15:25 Systematics and ecological reconstruction for Central American Aechmea (Bromeliaceae). Chodon Sass and Chelsea Specht. University of California, Berkeley.
15:30-15:55 Ecology, molecules and morphological variation in Otatea (Bambusoideae: Poaceae). How many species are there? Eduardo Ruiz-Sanchez and Victoria Sosa. Instituto de Ecología A. C.
16:00 Coffe break
16:30-16:55 Phylogeny of Muhlenbergia and relatives ( Chloridoideae: Poaceae). Travis Columbus. Rancho Santa Ana Botanical Garden.
17:00-17:25 Phylogeny and a new classification of the Panicoideae-Centothecoideae clade (Poaceae). Jorge Gabriel Sánchez-Ken. Instituto de Biología, Universidad Nacional Autónoma de México.
17:30-17:45 Una síntesis de las monocotiledóneas Mexicanas. Adolfo Espejo. Sociedad Botánica de México. Universidad y Autónoma Metropolitana, Iztapalapa.
17:45 Poster session

X Congreso Latinoamericano de Botánica. CHILE

El X Congreso Latinoamericano de Botánica
"Conservación y uso sustentable de la flora nativa latinoamericana"
se realizará en
la Ciudad de La Serena (Chile),
los días 4 al 10 de octubre de 2010.
PAG WEB

Circulares Informativas / Convocatorias
1º Convocatoria Octubre 2008

La popularidad de los analisis de clados anidados

Wiley InterScience :: JOURNALS :: Evolution
WHY DOES A METHOD THAT FAILS CONTINUE TO BE USED?
L. Lacey Knowles 1,2
1 Department of Ecology and Evolutionary Biology, Museum of Zoology, University of Michigan, Ann Arbor, Michigan 48109 2 E-mail: knowlesl@umich.edu
Associate Editor: M. Rausher
Copyright Journal compilation © 2008 The Society for the Study of Evolution
KEYWORDS
Biogeography • demographic history • historical inference • nested-clade analysis • phylogeography
ABSTRACT

As a critical framework for addressing a diversity of evolutionary and ecological questions, any method that provides accurate and detailed phylogeographic inference would be embraced. What is difficult to understand is the continued use of a method that not only fails, but also has never been shown to work—nested clade analysis is applied widely even though the conditions under which the method will provide reliable results have not yet been demonstrated. This contradiction between performance and popularity is even more perplexing given the recent methodological and computational advances for making historical inferences, which include estimating population genetic parameters and testing different biogeographic scenarios. Here I briefly review the history of criticisms and rebuttals that focus specifically on the high rate of incorrect phylogeographic inference of nested-clade analysis, with the goal of understanding what drives its unfettered popularity. In this case, the appeal of what nested-clade analysis claims to do—not what the method actually achieves—appears to explain its paradoxical status as a favorite method that fails. What a method promises, as opposed to how it performs, must be considered separately when evaluating whether the method represents a valuable tool for historical inference.

Received July 17, 2008
Accepted July 18, 2008
DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1558-5646.2008.00481.x About DOI

Making sense of Mexican microcrustaceans

Fuente de la información:

The Barcode of Life blog Blog Archive Making sense of Mexican microcrustaceans

In Hidrobiologica March 2008 researchers from El Colegia de la Frontera Sur, Universidad Autonoma Metropolitana, Iztapalapa, Mexico, describe a new species of Cladocera from temporary pools in a semi-desert region. Cladocera, commonly known as “water fleas,” are minute crustaceans mostly limited to fresh water; Daphnia sp are the best known. Cladocera are of practical importance as water quality indicators.

Similar to that for other invertebrates, the species description for this minute (0.4 mm) crustacean Leberis chihuahuensis comprises about 4 pages of mysterious text and 2 pages of equally enigmatic illustrations. In addition, the DNA barcode of the type specimen is provided, as well as the more usual NJ tree, in this case showing 14% sequence divergence from its sister species L. davidi.

By including both kinds of characters, ie DNA barcode and morphology, Elias-Gutierrez and Valdez-Moreno provide what seems to me a model for any new species description, one that will enable specialists and non-specialists alike to make the most use of their findings.

VII International Congress of Systematic and Evolutionary Biology ICSEB VII "Extending the Darwinian Panorama"

From: victoria.sosa [mailto:victoria.sosa@inecol.edu.mx]
Sent: Wed, 12 Nov 2008 10:56:08 -0600

Invitamos a los investigadores y estudiantes a participar en el

VII International Congress of Systematic and Evolutionary Biology ICSEB VII

"Extending the Darwinian Panorama"

Veracruz

5-10 julio 2009

http://www.botanik.univie.ac.at/ICSEB7/index.htm

--

***************************************

Dr. Victoria Sosa
Instituto de Ecología, A. C.
Apartado Postal 63
91000 Xalapa, Veracruz
Mexico

(Mensajeria) (Street address)

Km. 2.5 antigua carretera a Coatepec #351

Congr. El Haya

91070 Xalapa, Veracruz

Mexico

Tel. (52) 228 8421874; 8421800 ext. 3006 (of.) 3015 (lab)

Fax (52) 228 8187809

http://www.inecol.edu.mx/inecol/inecol.htm

Stratocladistics: Integrating Temporal Data and Character Data in Phylogenetic Inference

Stratocladistics: Integrating Temporal Data and Character Data in Phylogenetic Inference - Annual Review of Ecology, Evolution, and Systematics, 39(1):365 -
Abstract

Annual Review of Ecology, Evolution, and Systematics
Vol. 39: 365-385 (Volume publication date December 2008)
(doi:10.1146/annurev.ecolsys.38.091206.095752)
First published online as a Review in Advance on September 3, 2008

Stratocladistics: Integrating Temporal Data and Character Data in Phylogenetic Inference

Daniel C. Fisher­

Museum of Paleontology and Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109; email: dcfisher@umich.edu

Debate has long simmered over whether data on the order of appearance of taxa in the stratigraphic record should play any role in analyses of phylogenetic relationships among those taxa. Critics argue that temporal data are in principle inapplicable to questions of cladistic relationship, but specific versions of this claim all seem flawed. Stratocladistics offers a methodological context (patterned after that of cladistics itself) within which temporal data participate along with conventional character data in selecting most-parsimonious hypotheses. Stratocladistics outperforms cladistics in tests based on simulated histories, and additional testing will be facilitated by new software automating stratocladistic searches. As with any body of data, we may decide to include or exclude temporal data for specific reasons, but the explanatory power of hypotheses that use both temporal and conventional character data exceeds that of hypotheses based on character data alone.