In:
Nematology, Brill, Vol. 21, No. 5 ( 2019-05-20), p. 509-521
Abstract:
Chitwoodius coffeae sp. n. is described, including SEM observations and molecular (D2-D3 expansion segment of the rDNA 28S) analysis, from a coffee plantation in the Central Highlands of Vietnam. The new species is characterised by its 1.69-2.01 mm long body in females and 1.29-1.51 mm in males, lip region offset by deep constriction and 15-17 μ m broad, odontostyle 27-30 μ m long, neck 340-473 μ m long, pharyngeal expansion occupying 52-54% of total neck length, uterus a simple tube-like structure 68-106 μ m long, vulva longitudinal (V = 54-59), tail short and rounded conoid (20-28 μ m, c = 54-88, c′ = 0.6-0.8) with a nearly terminal projection of inner cuticle layer, spicules 60-64 μ m long, and 7-10 spaced ventromedian supplements without hiatus. SEM pictures, available for the first time for a representative of the genus, show a hexagonal (nearly hexastellate) oral field divided into six sectors by the existence of six deep incisures. Molecular analyses, also presented for the first time for a representative of the genus, results in a narrow evolutionary relationship among Chitwoodius and Tylencholaimus , and supports the monophyly of the Tylencholaimidae. This is the first record of Chitwoodius in Asian Far East territories. Chitwoodius ahmadi sp. n. is proposed for a misattributed population of C. seshadrii .
Type of Medium:
Online Resource
ISSN:
1388-5545
,
1568-5411
DOI:
10.1163/15685411-00003231
Language:
Unknown
Publisher:
Brill
Publication Date:
2019
detail.hit.zdb_id:
2019332-4
SSG:
12
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