The more we search, the more we find: discovering and expanding the biodiversity in the ring nematode genus Xenocriconemella De Grisse and Loof, 1965 (Nematoda: Criconematidae).

The ring nematode genus Xenocriconemella De Grisse and Loof, 1965 comprises only one nominal species, Xenocriconemella macrodora (Taylor, 1936) De Grisse and Loof, 1965. The initial objective of the present study was to investigate the morphological-morphometric and molecular diversity of 28 X. macrodora populations in the Iberian Peninsula associated with tree forests (mainly Quercus spp.

First reports of , and (Tylenchomorpha) from Greece and further records of four other nematode species.

Nematode samplings in various areas and crops of Greece were carried out and the recovered nematode species were characterized using morphological and molecular data. Seven species of plant-parasitic nematodes were recovered, three of which are reported for the first time in Greece, including , and . Four other recovered species had already been reported in Greece, including , , and .

Anatomical and molecular characterization of some rhigonematid parasites of millipedes in Nigeria, with new insights into their phylogeny.

Parasitic nematodes of millipedes from Nigeria are molecularly characterized for the first time. During nematode surveys on live giant African millipedes from several localities in Nigeria, 4 species of rhigonematids were identified by application of integrative taxonomical approaches (morpho-anatomy and molecular markers), including sp., , , and The results of morphometric and molecular analyses of D2-D3 28S, ITS, partial 18S rRNA, and cytochrome oxidase c subunit 1 (COI) gene sequences further characterized the rhigonematid species, and clearly separated them from other related species.

Morphological and Molecular Characterization of n. sp. (Tylenchomorpha: Tylenchoidea) from Rhizosphere of Gramineous Plants in Isfahan Province, Iran.

A new species from the family Tylenchidae was recovered in the grasslands of Isfahan province, Iran, and is herein described based on morphological and molecular data. n. sp.

First Report of Heterodera zeae Koshy, Swarup & Sethi, 1971 (corn cyst Nematode) Infecting Corn (Zea mays) in Spain.

Heterodera zeae Koshy, Swarup & Sethi, 1971 (corn cyst nematode) is an important disease of corn in several areas of the world, including India, Nepal, Pakistan, Egypt, USA, Greece and Portugal (Subbotin et al., 2010). It is a sedentary semi-endoparasite feeding on corn roots and other Poaceae plants and has been associated with significant yield losses in corn (Subbotin et al.

A Blind-Identification Test on (de Man, 1921) Micoletzky, 1925 Species Complex Corroborate the Hyper-Cryptic Species Diversity Using Integrative Taxonomy.

Ring nematodes are obligate ectoparasites on crops and natural herbaceous and woody plants, and some species are of economic importance and cause damage to roots of several crops. Recent integrative taxonomical analyses recognized the existence of two cryptic species within the morphotype in Spain. In this study, we corroborated that morphometric, morphological and a multi-locus analysis (including the ribosomal markers D2-D3 expansion segments of 28S rRNA, ITS rRNA, 18S RNA, and the mitochondrial DNA cytochrome oxidase I gene) identified a new lineage clearly separated from , and .

DNA Barcoding and Morphometry Reveal Further Cryptic Bio-Diversity within the Pin Nematode Genus (Nematoda: Tylenchulidae).

species are obligate ectoparasitic nematodes on cultivated and wild herbaceous and woody plants occupying numerous soil categories. Several species may cause damage to several crops (. , , , and on carnation, lettuce, rose and walnut, respectively).

First Report of Hooper, 1961 (Nematoda: Longidoridae) from Greece.

Longidorid nematodes comprise more than 500 species, and and are the most diversified, prevalent, and cosmopolitan genera within plant-parasitic nematodes. The genus comprise a group of species, some of which are vectors of plant viruses. New sampling for needle nematodes was carried out in a grapevine area in Thessaloniki, northern Greece, and one nematode species of () was recovered.

A Proposed New Species Complex within the Cosmopolitan Ring Nematode (de Man, 1921) Micoletzky, 1925.

Ring nematodes are obligate ectoparasites on cultivated and wild herbaceous and woody plants, inhabiting many types of soil, but particularly sandy soils. This study explored the morphometrical and molecular diversity of ring nematodes resembling in 222 soil samples from fruit crops in Spain, including almond, apricot, peach and plum, as well as populations from cultivated and wild olives, and common yew. Ring nematodes of the genus were detected in 12 samples from under spp.

First Report of Luc, 1961 (Dorylaimida: Longidoridae) from Nigeria.

A population of a species of dagger nematode () belonging to the non- group was recovered from the fields of kola nut ( sp.) in southern Nigeria. The morphological and morphometric data obtained from this population were consistent with the characteristics of the species .

A new needle nematode, n. sp. (Nematoda: Longidoridae) from southern Spain.

During nematode surveys in natural vegetation in Sierra Mágina, Jaén province, southern Spain, a species closely resembling was found, but application of integrative taxonomic approaches clearly demonstrated that it is a new species described herein as n. sp. The new species is amphimictic, characterized by a moderately long body (4.

Distribution, Ecological Factors, Molecular Diversity, and Specific PCR for Major Species of Pin Nematodes ( spp.) in Plantations in Spain.

This study aimed to evaluate the prevalence and distribution of species in the main areas of spp. production in Spain, their ecological constraints, and new molecular tools for the specific identification of major species. Pin nematodes are recognized as plant-parasitic nematodes with a wide host range and global distribution.

Integrative Taxonomy Reveals Hidden Cryptic Diversity within Pin Nematodes of the Genus (Nematoda: Tylenchulidae).

This study delves into the diagnosis of pin nematodes ( spp.) in Spain based on integrative taxonomical approaches using 24 isolates from diverse natural and cultivated environments. Eighteen species were identified using females, males (when available) and juveniles with detailed morphology-morphometry and molecular markers (D2-D3, ITS and COI).

Remarkable Cryptic Diversity of spp. (Nematoda: Tylenchulidae) in Spain.

In previous studies, fifteen species of , commonly known as pin nematodes, have been reported in Spain. These plant-parasitic nematodes are ectoparasites with a wide host range and global distribution. In this research, 27 populations from twelve species from 18 municipalities in Spain were studied using morphological, morphometrical and molecular data.

Morphological and molecular characterisation of (Nematoda: Longidoridae), first report from Greece.

Sampling for needle nematodes was carried out in a grapevine area in Thessaloniki, North Greece and two nematode species of ( and ) were collected. Nematodes were extracted from 500 cm of soil by modified sieving and decanting method, processed to glycerol and mounted on permanent slides, and subsequently identified morphologically and molecularly. Nematode DNA was extracted from single individuals and PCR assays were conducted to amplify D2-D3 expansion segments of 28S rRNA, ITS1 rRNA, and partial mitochondrial coxI regions.

Global Distribution of the Reniform Nematode Genus with the Synonymy of with .

Reniform nematodes of the genus are semi-endoparasites of numerous herbaceous and woody plant roots that occur largely in regions with temperate, subtropical, and tropical climates. In this study, we compared 12 populations of and 16 populations of , including paratypes deposited in nematode collections, confirming that morphological characters between both nematode species do not support their separation. In addition, analysis of molecular markers using nuclear ribosomal DNA (, ) and mitochondrial DNA () genes, as well as phylogenetic approaches, confirmed the synonymy of with .