| Título: | Genetic variation among Pinus patula populations along an altitudinal gradient. Two environment nursery tests |
| Autores: |
Sáenz-Romero,Cuauhtémoc Ruiz-Talonia,Lorena F. Beaulieu,Jean Sánchez-Vargas,Nahum M. Rehfeldt,Gerald E. |
| Fecha: | 2011-03-01 |
| Publicador: | Revista fitotecnia mexicana |
| Fuente: |
Ver documento |
| Tipo: | journal article |
| Tema: |
Pinus patula genotype × environment interaction commercial plantations provenances altitudinal genetic variation |
| Descripción: | Aiming to determine if there is genetic differentiation among Pinus patula Schiede et Chamizo populations along an altitudinal gradient and for quantifying the genotype × environment interaction, 13 Pinus patula populations were sampled from forests of the Native Indian Community of Ixtlán de Juárez, Oaxaca, state of México, along an altitudinal gradient (2400 m to 3000 m), cones being collected on groups of trees on every 50 m of altitudinal step). Seedlings were grown in tree pots in two different environments: a shadehouse located at Ixtlán de Juárez, and in a greenhouse and then in a shadehouse situated at Quebec, Canada. Total seedling height was measured at 6-months of age in both locations. Results indicated that populations differed significantly (P = 0.025), but there was no significant genotype × environment interaction (P = 0.426; B type genetic correlation = 0.93). Population from 2650 m (middle altitude) exhibited the best height. Although not definitive, our study suggests the presence of a weak altitudinal pattern of variation in seedling height, where populations originating of mid-altitudes exhibit the highest growth potential while populations from the upper and lower altitudinal extremes exhibit the lowest growth potential. |
| Idioma: | Inglés |
1 | 6 Fracturas maxilofaciales y factores asociados en derechohabientes del IMSS Campeche, México: Análisis retrospectivo 1994-1999 por Medina-Solis,Cario Eduardo,Córdova-González,José Luis,Casanova-Rosado,Alejandro José,Zazueta-Hernández,Maria Alejandra |
2 | 7 Factores de riesgo de mortalidad en el hijo de madre toxémica por Gómez-Gómez,Manuel,Danglot-Banck,Cecilia,García-de la Torre,Guadalupe Silvia,Antonio-Ocampo,Abdiel,Fajardo-Gutiérrez,Arturo,Sánchez-García,Maria Luisa,Ahumada-Ramírez,Elias |
3 Cerámicas mexicanas para cicatrización de piel por Piña-Barba,María Cristina,Tejeda-Cruz,Adriana,Regalado-Hernández,Miguel Ángel,Arenas-Reyes,María Isabel,Martín-Mandujano,Salvador,Montalvo,César | 8 I. De la enseñanza tutoral al aprendizaje a distancia por Cravioto,Alejandro |
4 Seguimiento de egresados de un diplomado en enseñanza de la Medicina por Ponce de León-Castañeda,Ma. Eugenia,Ruíz-Alcocer,Ma. del Carmen,Lozano-Sánchez,J. Rogelio | 9 II. La vocación científica: compromisos con el cambio permanente y la educación continua por Kretschmer,Roberto |
5 Primer estudio de teledermatología en México: Una nueva herramienta de salud pública por Lepe,Verónica,Moneada,Benjamín,Castanedo-Cázares,Juan Pablo,Martínez-Rodríguez,Alejandra,Mercado-Ceja,Sergio M,Gordillo-Moscoso,Antonio | 10 |