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Your search keyword '"Peñailillo, Patricio"' showing total 7 results
Start Over Author "Peñailillo, Patricio" Publisher wiley
7 results on '"Peñailillo, Patricio"'

2. Biogeography and genetic consequences of anagenetic speciation ofRhaphithamnus venustus(Verbenaceae) in the Juan Fernández archipelago, Chile: insights from AFLP and SSR markers

Author

López-sepúlveda, Patricio, primary, Takayama, Koji, additional, Crawford, Daniel J., additional, Greimler, Josef, additional, Peñailillo, Patricio, additional, Baeza, Marcelo, additional, Ruiz, Eduardo, additional, Kohl, Gudrun, additional, Tremetsberger, Karin, additional, Gatica, Alejandro, additional, Letelier, Luis, additional, Novoa, Patricio, additional, Novak, Johannes, additional, and Stuessy, Tod F., additional

Published
2016
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3. Relationships and genetic consequences of contrasting modes of speciation among endemic species ofRobinsonia(Asteraceae, Senecioneae) of the Juan Fernández Archipelago, Chile, based onAFLPs andSSRs

Author

Takayama, Koji, primary, López‐Sepúlveda, Patricio, additional, Greimler, Josef, additional, Crawford, Daniel J., additional, Peñailillo, Patricio, additional, Baeza, Marcelo, additional, Ruiz, Eduardo, additional, Kohl, Gudrun, additional, Tremetsberger, Karin, additional, Gatica, Alejandro, additional, Letelier, Luis, additional, Novoa, Patricio, additional, Novak, Johannes, additional, and Stuessy, Tod F., additional

Published
2014
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5. Genetic variation (AFLPs and nuclear microsatellites) in two anagenetically derived endemic species ofMyrceugenia(Myrtaceae) on the Juan Fernández Islands, Chile

Author

López-Sepúlveda, Patricio, primary, Takayama, Koji, additional, Greimler, Josef, additional, Peñailillo, Patricio, additional, Crawford, Daniel J., additional, Baeza, Marcelo, additional, Ruiz, Eduardo, additional, Kohl, Gudrun, additional, Tremetsberger, Karin, additional, Gatica, Alejandro, additional, Letelier, Luis, additional, Novoa, Patricio, additional, Novak, Johannes, additional, and Stuessy, Tod F., additional

Published
2013
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7. Genetic variation (AFLPs and nuclear microsatellites) in two anagenetically derived endemic species of Myrceugenia (Myrtaceae) on the Juan Fernández Islands, Chile.

Author

López-Sepúlveda P, Takayama K, Greimler J, Peñailillo P, Crawford DJ, Baeza M, Ruiz E, Kohl G, Tremetsberger K, Gatica A, Letelier L, Novoa P, Novak J, and Stuessy TF

Subjects
Amplified Fragment Length Polymorphism Analysis, Chile, Microsatellite Repeats, Phylogeography, Genetic Variation, Myrtaceae genetics
Abstract

Premise of the Study: Anagenesis (or phyletic evolution) is one mode of speciation that occurs in the evolution of plants on oceanic islands. Of two endemic species on the Juan Fernández Islands (Chile), Myrceugenia fernandeziana and M. schulzei (Myrtaceae), believed to have originated anagenetically from different continental progenitors, the first is endemic to Robinson Crusoe Island and has no clear tie to continental relatives; the last is endemic to the younger island, Alejandro Selkirk Island, and has close affinity to M. colchaguensis in mainland Chile., Methods: Using AFLPs and six nuclear microsatellites from 381 individuals representing 33 populations, we determined patterns of genetic variation within and among populations on both islands and between those of the islands and mainland., Key Results: Considerable genetic variation was found within populations on both islands. The level of gene diversity within M. schulzei was equivalent to that of its close continental relative M. colchaguensis. Genetic diversity was not partitioned geographically in M. fernandeziana and was weakly so and nonsignificantly in M. schulzei., Conclusions: The high genetic variation in both taxa is most likely due to anagenetic speciation. Subsidence of the older island Robinson Crusoe, landscape erosion, and restructuring of communities have severely reduced the overall island population to a single panmictic system. On the younger and less modified Alejandro Selkirk Island, slightly stronger patterns of genetic divergence are seen in M. schulzei. Because both species are genetically diverse and number in the thousands of individuals, neither is presently endangered in the archipelago.

Published
2013
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