Study of chromosomal and nucleolar aspects in testes of Nysius californicus (Heteroptera: Lygaeidae)

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:28Z
dc.date.available2014-05-27T11:22:28Z
dc.date.created2014-05-27T11:22:28Z
dc.date.issued2007-05-18
dc.identifierGenetics and Molecular Research, v. 6, n. 1, p. 33-40, 2007.
dc.identifier1676-5680
dc.identifierhttp://hdl.handle.net/11449/69667
dc.identifierWOS:000251613400005
dc.identifier2-s2.0-34047235586
dc.identifier2-s2.0-34047235586.pdf
dc.identifier2083565673316669
dc.description.abstractIn Nysius californicus (family Lygaeidae, subfamily Orsillinae), a pest commonly known as the seed bug, the chromosome complement is 2n = 16 (12A + 2m + XY), testes are formed by seven seminiferous tubules covered by an orange-colored membrane, and spermatogenesis is cystic. At prophase, sex chromosomes are heteropycnotic and autosomes usually show a chiasma. At metaphase, sex chromosomes along with microchromosomes may be seen located at the center of a ring formed by the remaining autosomes. A characteristic specific of N. californicus was the presence of nucleolar material observed from the cystic cell to the completely differentiated spermatozoon. Variations in size, shape and location of the nucleolar material occur during this process, denoting a variable degree of activity in the different stages. ©FUNPEC-RP.
dc.languageeng
dc.relationGenetics and Molecular Research
dc.relation0,439
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectHeteroptera
dc.subjectHeteropycnosis
dc.subjectKaryotype
dc.subjectLygaeidae
dc.subjectNucleolar corpuscles
dc.subjectNysius californicus
dc.subjectanimal tissue
dc.subjectautosome
dc.subjectchromosome analysis
dc.subjectchromosome chiasm
dc.subjectchromosome NOR
dc.subjectcontrolled study
dc.subjectmale
dc.subjectmetaphase chromosome
dc.subjectmicrochromosome
dc.subjectmitosis rate
dc.subjectnonhuman
dc.subjectnucleolus
dc.subjectpest organism
dc.subjectprophase
dc.subjectseminiferous tubule
dc.subjectsex chromosome
dc.subjectsex determination
dc.subjectspermatogenesis
dc.subjectspermatozoon
dc.subjectsunflower
dc.subjecttestis
dc.subjectanimal
dc.subjectcytology
dc.subjectgenetics
dc.subjectmeiosis
dc.subjectphysiology
dc.subjectOrsillinae
dc.subjectXyonysius californicus
dc.subjectAnimals
dc.subjectMale
dc.subjectMeiosis
dc.subjectNucleolus Organizer Region
dc.subjectSeminiferous Tubules
dc.subjectSex Chromosomes
dc.subjectSpermatogenesis
dc.titleStudy of chromosomal and nucleolar aspects in testes of Nysius californicus (Heteroptera: Lygaeidae)
dc.typeArtículos de revistas


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