@article {201, title = {The cellular structure of the female reproductive system within the Heteroderinae and Meloidogyninae (Nematoda)}, journal = {NematologyNematology}, volume = {4}, year = {2002}, note = {Times Cited: 4 Article English Bert, W State Univ Ghent, Dept Biol, Ledeganckstr 35, B-9000 Ghent, Belgium Cited References Count: 40 651JE BRILL ACADEMIC PUBLISHERS PLANTIJNSTRAAT 2, P O BOX 9000, 2300 PA LEIDEN, NETHERLANDS LEIDEN Part 8}, pages = {953-963}, abstract = {Gonads from living young females, representing 23 different species, were extracted to study the cellular structure of the female genital structure within the Meloidogyninae and Heteroderinae. All genera studied can be characterised by their cellular spermatheca morphology. Within Meloidogyne a spherical spermatheca is found with lobe-like protruding cells, most species having 16 to 18 spermatheca cells with interlaced cell boundaries while M. microtyla and M. ichinohei have more spermatheca cells with different cell boundaries. Heterodera and Globodera reveal a comparable gonad structure. The spermatheca cells of Heterodera are columnar and arranged in a restricted number of rows, whereas in Globodera the spermatheca cells are squarish to rounded, depending on the species. The gonad morphology of Afenestrata koreana is clearly different from what would be expected based on the related genera Globodera and Heterodera. The apparently simplest genital system was found in Meloidodera floridensis where the uterus has a limited number of cells. In the other genera studied a large and variable cell-number was found}, keywords = {Afenestrata, CELLS, CLASSIFICATION, CYST, DNA, Evolution, female genital system, GENITAL SYSTEM, Globodera, GLOBODERA-ROSTOCHIENSIS, gonad, HETERODERA, HETERODERINAE, Meloidodera, MELOIDOGYNE, morphology, Nematoda, REPRODUCTIVE-SYSTEM, SEM, SPERMATHECA, TYLENCHIDA, variable cell number}, isbn = {1388-5545}, author = {Bert, W. and Karssen, G. and Van Driessche, R. and Geraert, E.} } @article {160, title = {The comparative cellular architecture of the female gonoduct among Tylenchoidea (Nematoda : Tylenchina)}, journal = {Journal of NematologyJournal of Nematology}, volume = {38}, number = {3}, year = {2006}, note = {Times Cited: 1 Article English Bert, W Univ Ghent, Dept Biol, Nematol Unit, B-9000 Ghent, Belgium Cited References Count: 30 115AX SOC NEMATOLOGISTS}, pages = {362-375}, abstract = {The cellular architecture of the female gonoduct of 68 nematode populations representing 42 species belonging to Tylenchidae, Belonolaimidae, Hoplolaimidae and Meloinema is shown to have an overall similarity in cellular gonoduct structure. The oviduct consists of two rows of four cells; the spermatheca is comprised of 10 to 20 cells, and the uterus cells, except in the case of Psilenchus, are arranged in four (Tylenchidae) or three (Belonolaimidae, Hoplolaimidae and Meloinema) regular rows. Although the genus Meloinema is classified within Meloidogynidae, its spermatheca is clearly hoplolaimid-like and lacks the spherical shape with lobe-like protruding cells typical of Meloidogyne. Detailed morphology of expelled gonoducts may provide a valuable character set in phylogenctic analysis, and the cellular morphology of the spermatheca appears to be a distinguishing feature at species level, especially in the genera Tylenchus and Geocenamus. Ultrastructural data on the oviduct-spermatheca region of Meloidogvne incognita complement light-microscopic (LM) results. The combination of LM of expelled organs and transmission electron microscopy (TEM) on selected sections is put for-ward as a powerful tool to combine three-dimensional knowledge with ultrastructural detail}, keywords = {analysis, Belonolaimidae, CELLS, electron microscopy, ELECTRON-MICROSCOPY, Evolution, GENITAL SYSTEM, GENUS, gonoduct, Hoplolaimidae, MELOIDOGYNE, Meloinema, microscopy, morphology, Nematoda, NEMATODE, ORDER TYLENCHIDA, POPULATIONS, REPRODUCTIVE-SYSTEM, SPERMATHECA, taxonomy, TEM, Tylenchidae, ultrastructure}, isbn = {0022-300X}, author = {Bert, W. and Claeys, M. and Borgonie, G.} }