Morphological and molecular variability of a green coconut population in Baracoa region
Main Article Content
Abstract
main coconut producting zones of the country, as well as a
diversity center for this crop. In order to obtain a sustainable
agricultural development of coconut in that zone, it is necessary
to maintain the genetic diversity of cultured species and pre-
serve wild species, which is of great importance for the selection
of highly productive varieties and of those that present
resistance and/or tolerance to the diseases affecting the culture.
Since the use of morphological and molecular studies
constitute an effective and valuable way to estimate the genetic
diversity of coconut population in Cuba, a molecular and
morphological characterization of 21 ecotypes of green coconut
(Cocos nucifera L.), belonging to a natural population of
Baracoa municipality, Guantánamo province, was carried out.
Fourteen descriptors were used for the morphological
characterization and ISTR marker technique (Inverse Sequence
Tagged Repeat) for the molecular characterization. Patterns of
morphological variation between coconut ecotypes were
obtained, which permitted to differ population groups in the
region. The presence of characteristics of wild and domestic
types described for the species was evidenced. The variables
that contributed the most to characterization of ecotypes were
those related with fruit components and plant morphology.
ISTR analysis detected 84 % of polymorphism, showing the
potentiality of this marker to carry out studies on molecular
diversity in coconut. In addition, it is suggested that coconut
dispersion in Baracoa region permitted the contact between
different ecotypes during many generations mainly helped by
the cross-pollination present in this species.
Article Details
Those authors who have publications with this journal accept the following terms of the License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0):
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
The journal is not responsible for the opinions and concepts expressed in the works, they are the sole responsibility of the authors. The Editor, with the assistance of the Editorial Committee, reserves the right to suggest or request advisable or necessary modifications. They are accepted to publish original scientific papers, research results of interest that have not been published or sent to another journal for the same purpose.
The mention of trademarks of equipment, instruments or specific materials is for identification purposes, and there is no promotional commitment in relation to them, neither by the authors nor by the publisher.