1Masters in Biotechnology, , firstname.lastname@example.org, Universidad Nacional de Colombia, Medellín, Group BIOGEM, orcid: 0000-0002-4623-4588
2Masters in Biotechnology, email@example.com , Universidad Nacional de Colombia, Medellín, Group BIOGEM, orcid: 0000-0002-4623-4588, 2 PhD in Animal
3*Doctor in Basic Biomedical Sciences, , firstname.lastname@example.org, Professor, Universidad Nacional de Colombia, Faculty of Agricultural Sciences, Medellín, Group BIOGEM, ,orcid: 0000-0003-1444-3470
How to cite:
J. Arango-Gaviria, J. Echeverri-Zuluaga y A. Lopez-Herrera, “Diversity Kikuyu grass (Cenchrus clandestinus): A review.”. Respuestas, vol. 24, no. 2, pp. 82-90, 2019.
ArticleReceived on September 25, 2018; Approved on December 15, 2018
Kikuyu is a perennial plant of rapid growth and high aggressiveness, which represents one of the most important resources for the development of the economy and to support specialized livestock in Colombia. It was introduced in the mid-30s, where it has spread thanks to its invasive nature; However studies have been conducted, few have focused on genetic diversity and phenotypic variability within populations, as well as possible contributions that they can provide sustainability to the agricultural sector. The objective of this review is to explore prior information about some basic topics of this forage species and especially on its diversity and genetic variability at different latitudes. A systematic search was conducted scientific articles, indexed journals, books and documents that had as main axis basic information about topics mainly on grass and variability and genetic diversity. In other countries they have been registered several lines of Kikuyu grass, as well as some studies on genetic diversity that have been determined in different populations, large amount of genetic variation consistent with the morphological diversity that has grass.
Keywords:Poaceae, Genetic Variability, Phenotypic Variation.
El kikuyo es una planta perenne de rápido crecimiento y alta agresividad, la cual representa uno de los recursos más importantes para el desarrollo de la economía y para el soporte de la ganadería especializada en Colombia. Fue introducido a mediados de los años 30, donde se ha propagado gracias a su carácter invasivo; sin embargo de los estudios que se han realizado, pocos se han centrado en la diversidad genética y variabilidad fenotípica dentro de sus poblaciones, así como las posibles contribuciones que estas puedan proveer a la sustentabilidad al sector agropecuario. El objetivo de esta revisión es explorar información previa acerca de algunos tópicos básicos de esta especie forrajera y principalmente sobre su diversidad y variabilidad genética en diversas latitudes. Se realizó una búsqueda sistemática de artículos científicos, revistas indexadas, libros y documentos que tuvieran como eje principal información acerca de tópicos básicos del pasto y principalmente sobre la variabilidad y diversidad genética. En otros países han sido registradas varias líneas de pasto kikuyo, así como también, algunos estudios sobre diversidad genética que han logrado determinar en diferentes poblaciones, gran cantidad de variación genética consistente con la amplia variabilidad morfológica que tiene pasto.
Keywords:Poaceae, Variabilidad Genética, Variación Fenotípica.
For decades in cold climates of Colombia and many other parts of the world, pennisetums(Originally named Pennisetum clandestinum Hoechst. Ex Chiov) It has been considered one of the most important grasses in feeding dairy cattle specialist.  - .
Features such as resistance to trampling, aggressive growth habit and efficient response to fertilization  -  They transformed it into an important factor in productivity and economy of the dairy chain. For this reason pastures and especially the Kikuyu grass represent an important resource for the development of the economy and the support of livestock  -  Despite these attributes and their extensive agronomic and zootechnical knowledge, few studies exist at the genetic level of this resource meaningful. Studies on diversity and genetic variability of agricultural resources are of vital importance not only for the conservation and evolutionary genetics but also for future studies based on sustainability and agricultural productivity. Determining the variability of the kikuyu grass, could allow access to a wide range of options in terms of advantages and qualities that can offer different varieties. Therefore, the aim of this work is to gather prior information about some basic topics of this forage species and especially on its diversity and genetic variability at different latitudes.
Most production systems in the country are based on rotational grazing where the Kikuyu grass is the basis of the forage supply. Consequently, researchers and producers have focused primarily on the study of the chemical and nutritional composition, despite its great attributesand its extensive agronomic and zootechnical knowledge few studies that exist at the genetic levelLeaving aside the knowledge of their diversity which establish particular characteristics of each of its varieties could.
As the most common and known propagation method is the kikuyo through the vegetative form and also a high level of plasticity is observed; the formation of clonal populations in the prairies would be expected, but sexual reproduction through seeds and various dispersion media such as wind and cattle droppings in constant motion; They represent a great opportunity for variants and diversity of genotypes because of the wide range of environmental conditions under which the kikuyu grass grows generated.
We thank the Universidad Nacional de Colombia at Medellín (Project “Development of microsatellite markers and cytogenetic analysis of Kikuyu grass (Cenchrus clandestinus) in the department of Antioquia” No 44330).References
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