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The International Journal of Developmental Biology

Volume 56 > Issue 1-2-3 (Special Issue)

Cover Vol. 56 N. 1-2-3

The Planaria Model System

Edited by: Emili Saló and Kiyokazu Agata

Cover Legend

The spectacular regeneration capability of soft-bodied planarians has enchanted us for many years. Within days of losing its head and tail, a new head and a new tail are formed. The new tissues, although not yet pigmented (see unpigmented extremes of the illustrated planarian), are perfectly patterned, and perfectly functional. One of the “secrets” of how planarians achieve this is a population of totipotent stem cells called neoblasts. The curious reader is invited, by exploring the papers in this Special Issue, to find out if planarians really have discovered the secret of immortality, living in the incessant fountain of youth, … or not! The illustrated planarian belongs to the species Schmidtea mediterranea, and it is a freshwater planarian. For more details, see paper by Galloni, pp. 103-116.

Preface

OPEN ACCESS

Planarian regeneration: a classic topic claiming new attention

Emili Saló and Kiyokazu Agata

Int. J. Dev. Biol. (2012) 56: 1-4

https://doi.org/10.1387/ijdb.123495es

Introductory Papers

Evolutionary history of the Tricladida and the Platyhelminthes: an up-to-date phylogenetic and systematic account

Marta Riutort, Marta Álvarez-Presas, Eva Lázaro, Eduard Solà and Jordi Paps

Int. J. Dev. Biol. (2012) 56: 5-17

https://doi.org/10.1387/ijdb.113441mr

The planarian neoblast: the rambling history of its origin and some current black boxes

Jaume Baguñà

Int. J. Dev. Biol. (2012) 56: 19-37

https://doi.org/10.1387/ijdb.113463jb

Planarian embryology in the era of comparative developmental biology

José M. Martín-Durán, Francisco Monjo and Rafael Romero

Int. J. Dev. Biol. (2012) 56: 39-48

https://doi.org/10.1387/ijdb.113442jm

The past and present of planarians - An interview with Vittorio Gremigni

Alessandra Salvetti and Leonardo Rossi

Int. J. Dev. Biol. (2012) 56: 49-52

https://doi.org/10.1387/ijdb.113453as

Contributions

Wnt signaling in planarians: new answers to old questions

Maria Almuedo-Castillo, Miquel Sureda-Gómez and Teresa Adell

Int. J. Dev. Biol. (2012) 56: 53-65

https://doi.org/10.1387/ijdb.113451ma

Small RNA pathways in Schmidtea mediterranea

Alissa M. Resch and Dasaradhi Palakodeti

Int. J. Dev. Biol. (2012) 56: 67-74

https://doi.org/10.1387/ijdb.113436ar

OPEN ACCESS

An insulin-like peptide regulates size and adult stem cells in planarians

Claire M. Miller and Phillip A. Newmark

Int. J. Dev. Biol. (2012) 56: 75-82

https://doi.org/10.1387/ijdb.113443cm

Decreased neoblast progeny and increased cell death during starvation-induced planarian degrowth

Cristina González-Estévez, Daniel A. Felix, Gustavo Rodríguez-Esteban and A. Aziz Aboobaker

Int. J. Dev. Biol. (2012) 56: 83-91

https://doi.org/10.1387/ijdb.113452cg

Comprehensive gene expression analyses in pluripotent stem cells of a planarian, Dugesia japonica

Norito Shibata, Tetsutaro Hayashi, Ryutaro Fukumura, Junsuke Fujii, Tomomi Kudome-Takamatsu, Osamu Nishimura, Syozo Sano, Fuyan Son, Nobuko Suzuki, Ryoko Araki, Masumi Abe and Kiyokazu Agata

Int. J. Dev. Biol. (2012) 56: 93-102

https://doi.org/10.1387/ijdb.113434ns

Global irradiation effects, stem cell genes and rare transcripts in the planarian transcriptome

Mireille Galloni

Int. J. Dev. Biol. (2012) 56: 103-116

https://doi.org/10.1387/ijdb.113455mg

Heterogeneity of planarian stem cells in the S/G2/M phase

Sören Moritz, Franziska Stöckle, Claudia Ortmeier, Henning Schmitz, Gustavo Rodríguez-Esteban, Göran Key and Luca Gentile

Int. J. Dev. Biol. (2012) 56: 117-125

https://doi.org/10.1387/ijdb.113440sm

Stem cell protection mechanisms in planarians: the role of some heat shock genes

Maria-Emilia Isolani, Maria Conte, Paolo Deri and Renata Batistoni

Int. J. Dev. Biol. (2012) 56: 127-133

https://doi.org/10.1387/ijdb.113432mi

Stem cells and neural signalling: the case of neoblast recruitment and plasticity in low dose X-ray treated planarians

Leonardo Rossi, Paola Iacopetti and Alessandra Salvetti

Int. J. Dev. Biol. (2012) 56: 135-142

https://doi.org/10.1387/ijdb.123505lr

Regeneration of neuronal cell types in Schmidtea mediterranea: an immunohistochemical and expression study

Susanna Fraguas, Sara Barberán, Begoña Ibarra, Linda Stöger and Francesc Cebrià

Int. J. Dev. Biol. (2012) 56: 143-153

https://doi.org/10.1387/ijdb.113428sf

Inhibitory Smads and bone morphogenetic protein (BMP) modulate anterior photoreceptor cell number during planarian eye regeneration

Alejandro González-Sastre, Mª Dolores Molina and Emili Saló

Int. J. Dev. Biol. (2012) 56: 155-163

https://doi.org/10.1387/ijdb.123494ag

The Dr-nanos gene is essential for germ cell specification in the planarian Dugesia ryukyuensis

Haruka Nakagawa, Hirotsugu Ishizu, Ayako Chinone,Kazuya Kobayashi and Midori Matsumoto

Int. J. Dev. Biol. (2012) 56: 165-171

https://doi.org/10.1387/ijdb.113433hn

The planarian P2X homolog in the regulation of asexual reproduction

Toshihide Sakurai, Hayoung Lee, Makoto Kashima, Yumi Saito, Tetsutaro Hayashi, Tomomi Kudome-Takamatsu, Osamu Nishimura, Kiyokazu Agata and Norito Shibata

Int. J. Dev. Biol. (2012) 56: 173-182

https://doi.org/10.1387/ijdb.113439ts

Physiological and molecular characterisation of cadmium stress in Schmidtea mediterranea

Michelle Plusquin, An-Sofie Stevens, Frank Van Belleghem, Olivier Degheselle, Andromeda Van Roten, Jessica Vroonen, Ronny Blust, Ann Cuypers, Tom Artois and Karen Smeets

Int. J. Dev. Biol. (2012) 56: 183-191

https://doi.org/10.1387/ijdb.113485mp

Planarians in pharmacology: parthenolide is a specific behavioral antagonist of cocaine in the planarian Girardia tigrina

Oné R. Pagán, Debra Baker, Sean Deats, Erica Montgomery, Matthew Tenaglia, Clinita Randolph, Dharini Kotturu, Christopher Tallarida, Daniel Bach, Galia Wilk, Scott Rawls and Robert B. Raffa

Int. J. Dev. Biol. (2012) 56: 193-196

https://doi.org/10.1387/ijdb.113486op