Image from Google Jackets

A morphometric analysis of a putative hybrid between Agave marmorata Roezl and Agave kerchovei Lem.: Agave peacockii Croucher

Tipo de material: TextoTextoSeries ; Botanical Journal of the Linnean Society, 122(2), p.155-161, 1996Trabajos contenidos:
  • Valverde, P.L
  • Vite, F
  • Zavala-Hurtado, J.A
Tema(s): Recursos en línea: Resumen: A supposed hybrid population (Agave peacockii)between Agave marmorata and Agave kerchovei in a semiarid ecosystem at Zapotitlan Salinas, in the Mexican State of Pueba, was investigated, and its hybrid status corroborated in morphometric terms. A Stepwise Discriminant Analysis of the ratios: Number of leaves/Rosette diameter, Leaf width/Leaf length, Number of spines/Leaf length, Distance between the upper spine and the tip of the leaf/Leaf length, and Distance between the upper spine and the tip of the leaf/Number of spines, supported our hypothesis of the existence of these naturally occurring hybrids, which are intermediate and distinct from the parental species. A null model was constructed to contrast the real case with a possible artifact, and the results also supported our hypothesis. The possible meaning of this kind of hybridization is discussed.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Status Date due Barcode
Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-17000 (Browse shelf(Opens below)) Available

A supposed hybrid population (Agave peacockii)between Agave marmorata and Agave kerchovei in a semiarid ecosystem at Zapotitlan Salinas, in the Mexican State of Pueba, was investigated, and its hybrid status corroborated in morphometric terms. A Stepwise Discriminant Analysis of the ratios: Number of leaves/Rosette diameter, Leaf width/Leaf length, Number of spines/Leaf length, Distance between the upper spine and the tip of the leaf/Leaf length, and Distance between the upper spine and the tip of the leaf/Number of spines, supported our hypothesis of the existence of these naturally occurring hybrids, which are intermediate and distinct from the parental species. A null model was constructed to contrast the real case with a possible artifact, and the results also supported our hypothesis. The possible meaning of this kind of hybridization is discussed.

There are no comments on this title.

to post a comment.