Identification and distribution of Meloidogyne species in Baja California Sur, Mexico
DOI:
https://doi.org/10.29312/remexca.v10i2.1603Keywords:
Meloidogyne spp., root knot nematode, vegetablesAbstract
Agriculture in Baja California Sur presents a serious problem due to the damage caused by the root-knot nematode Meloidogyne spp. The incidence of damage caused by this type of pathogen is high, however, its distribution and the species present in the entity are not currently known. Taking into account that this information is key in the strategies for the management of said phytonematode, the objective of the present study was to identify by morphological characters and molecular methods, the Meloidogyne species present in the sampled crops, as well as their distribution in the state. During the 2017-2018 agricultural cycle, soil and plant roots were sampled with wilt and yellowing symptoms in the different crops of four municipalities of the state. From 50 collected roots, 50 females of Meloidogyne spp. of the sampled crops, which were identified by morphological characterization of perineal patterns. Subsequently, genomic DNA was extracted from these females and specific genes reported in the literature for different species were amplified. The results obtained show that the identified species correspond to Meloidogyne incognita and Meloidogyne enterelobii, where the incidence of the populations was 30% and 70% respectively. Of the two-species identified, M. enterelobii was the one that predominated in the agricultural areas of Baja California Sur. While M. incognita was only found in two municipalities. This information will be useful in the effective implementation of control measures against the different Meloidogyne species in the State.
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