Chromosomes and types of parthenogenesis in the false spider mites (Acari: Tenuipalpidae)

Helle, W.; Bolland, H.R.; Heitmans, W.R.B.

doi:10.1007/bf00122407

Cited by 36 publications

(29 citation statements)

References 5 publications

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“…This high sex ratio was expected because B. phoenicis reproduces mainly by thelytokous parthenogenesis, in other words, non-fecundated females produce females identical to the progenitor (Haramoto, 1969;Helle et al, 1980), sexual repro- duction with the participation of males also exists, which is rare in the population. Fertility life table -The intrinsic rate of the population increase (r m ) was estimated at 0.128 females/female/day in citric fruit and 0.090 females/ female/day in coffee leaves ( Fig.…”

Section: Resultsmentioning

confidence: 99%

Reproductive performance of the mite Brevipalpus phoenicis (Geijskes, 1939) on citrus and coffee, using life table parameters

Teodoro

Reis

2006

Braz. J. Biol.

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The flat-mite Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) is considered important in citrus (Citrus spp.) and coffee plants (Coffea spp.) in Brazil, and is known as the leprosis and coffee ring spot mite, as being a vector of the Citrus Leprosis Rhabdovirus -CitLV and Coffee Ring Spot Virus -CoRSV. The objective of this work is to find out about the reproductive success of B. phoenicis on citric fruits and coffee leaves by fertility life table parameters and its biology. The experiments were carried out in laboratory conditions at 25 ± 2 °C, 70 ± 10% of relative humidity and 14 h of photophase. The lengths of embryonic and post-embryonic periods were different due to the host where the mite was reared. B. phoenicis showed better development and higher survival and fecundity in citric fruits than coffee leaves. The intrinsic rate of the population increase (r m ) was 0.128 and 0.090 -females/female/day on citric fruits and coffee leaves, respectively. The citric fruits were more appropriate for the development of B. phoenicis than coffee leaves.

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Section: Resultsmentioning

confidence: 99%

Reproductive performance of the mite Brevipalpus phoenicis (Geijskes, 1939) on citrus and coffee, using life table parameters

Teodoro

Reis

2006

Braz. J. Biol.

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“…It has been frequently studied in insects (Suomalainen, 1962), but rarely in arachnids. Except for mites, where it is rather common (Helle et al, 1980), it is reported only for a few scorpions (Lourenço, 2002(Lourenço, , 2008, harvestmen (Tsurusaki, 1986), schizomids (Reddell & Cokendolpher, 1995) and amblypygids (Weygoldt, 2007), but there is little reliable information. Of the more than 40 000 species of spiders in the world (Platnick, 2008) only a few are parthenogenetic (Lake, 1986;Deeleman-Reinhold, 1986;Gruber, 1990;Shimojana & Nishihira, 2000;Edwards et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Life-history of the parthenogenetic oonopid spider, Triaeris stenaspis (Araneae: Oonopidae)

Korenko¹,

Šmerda²,

Pekár³

2009

Eur. J. Entomol.

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Abstract. Selected life-history traits of an oonopid spider, Triaeris stenaspis Simon, which has been introduced into greenhouses in Europe, were investigated. Spiders were reared in the laboratory under constant physical and dietary conditions, and followed from egg to death. The spiders passed through 3 juvenile instars, each lasting approximately a month. The adult stage lasted on average 6 months, which is 54% of the entire life cycle. The mortality in each juvenile instar was similar. Five morphological characters were recorded for each instar, which provided a reliable means of identifying the developmental stages. All spiders developed into females and although kept isolated they laid fertile eggs, which indicates thelytokous parthenogenesis. Eggs were always enclosed in a disc-shaped egg-sac, each containing 2 eggs. Total fecundity was on average 27 eggs and rate of laying eggs decreased with age. Fecundity was positively correlated with adult longevity. Fertility was rather low, approximately 59%. It was negatively correlated with fecundity but not related to longevity. Low fertility appears to be the only cost of parthenogenetic reproduction. There was considerable genotypic variation in all traits studied compared to that in sexually reproducing spiders. There were no apparent maternal effects on all the traits studied. Using molecular methods proved that parthenogenesis in T. stenaspis is not induced by the endosymbiotic bacteria,

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“…O ácaro Brevipalpus se reproduz principalmente por partenogênese telítoca, isto é, fêmeas não fecundadas dão origem a fêmeas idênticas a progenitora (Helle et al, 1980), existindo também a reprodução sexuada, quando machos estão presentes na população (cerca de 1%). Estudos conduzidos por Weeks et al (2001) (Oliveira, 1986).…”

Section: Solanum Violaefolium Schott (Bitter)(= Lycianthes Asarifoliaunclassified

Caracterização de um vírus baciliforme isolado de Solanum violaefolium transmitido pelo ácaro Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae).

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Chromosomes and types of parthenogenesis in the false spider mites (Acari: Tenuipalpidae)

Cited by 36 publications

References 5 publications

Reproductive performance of the mite Brevipalpus phoenicis (Geijskes, 1939) on citrus and coffee, using life table parameters

Reproductive performance of the mite Brevipalpus phoenicis (Geijskes, 1939) on citrus and coffee, using life table parameters

Life-history of the parthenogenetic oonopid spider, Triaeris stenaspis (Araneae: Oonopidae)

Caracterização de um vírus baciliforme isolado de Solanum violaefolium transmitido pelo ácaro Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae).

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