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File:Zaprionus tuberculatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Drosophilidae
Genus: Zaprionus
Species:
Z. tuberculatus
Binomial name
Zaprionus tuberculatus
Malloch, 1932

Zaprionus tuberculatus[edit]

The fly Zaprionus tuberculatus (commonly known as the vinegar fly or the pomace fly) is an invasive fruit fly and member of the Zaprionus genus and subgenus, which is within the Drosophilidae family and Diptera order. It originates in Africa, but can also be found in Europe and Asia. Z. tuberculatus earned its common-name the "vinegar fly" because researchers frequently captured Z. tuberculatus using vinegar traps. Z. tuberculatus was previously considered a strictly tropical fly, but evidence of invasion to nontropical regions such as Turkey show Z. tuberculatus does not thrive in strictly tropical environments.

Taxonomy[edit]

Z. tuberculatus was first discriminated from its close relative Z.sepsoids in the 1970's. [1]Z. tuberculatus has been recently classified as a member of the tuberculatus species, which belongs to the tuberculatus species subgroup and is a member of the inermis species group.[2][3] Previously, Z. tuberculatus was classified as a member of the armatus group.[1] The Zaprionus genus primarily populates throughout Africa and contains 59 species, the most common of which being Z. indianus and Z. tuberculatus.[4] The 59 species of the Zaprionus genus are divided into two subgroups: Afrotropical Zaprionus sensu stricto (s.s.), to which Z. tuberculatus belongs, and Anaprionus near Asia and Australia. [5] [6]Further within the Zaprionus sensu stricto (s.s.) subgenus are several further subgroups, including the armatus subgroup to which Z. tuberculatus belonged until 2010. [3]

Phylogeny of the genus Drosophila and included genera

Sophophora and included groups

Simplified phylogenetic tree of the genus Drosophila and included genera with a focus on the phylogenetic position of the genus Zaprionus.[7][8]


Description[edit]

Z. tuberculatus contains four white horizontal stripes across its head and thorax, similar to other members of the Zaprionus subgroup. Z. tuberculatus males bear hairs on its forelegs. [3][4]Both male and female Z. tuberculatus flies have a protruding bristle from the forefemur. [4] The frons on Z. tuberculatus have a medium-white stripe and the aedaegus is robust and curved.[3] Z. tuberculatus also sports a dark-brown colored thorax. [4] Two white, aligned, horizontal lines characterize the mesonotum and metanotum of Z. tuberculatus.[4] Z. tuberculatus shares several common features with other members of the Zaprionus genus, including a completely smooth larval cephalopharyngeal.[3]


Male reproductive system[edit]

Between individual Z.tuberculatus flies, brothers and sisters are distinguished by testicular size (TST), for which the mean is 3.2mm.[4][3]

Female reproductive system[edit]

The average seminal recepaical (SR) of a female Z. tuberculatus fly is 3.6mm. [3]

Distribution[edit]

Z. tuberculatus, originally from islands near the Indian Ocean and Afrotropical Region, then became invasive and expanded geographically to southern Europe.[4] Within the Afrotropical region, Z. tuberculatus has been reported in Mauritius, Réunion, Madagascar, Saint-Helena, Cape Verde, and Seychelles .[5] Z. tuberculatus has first been reported in Europe in Italy September, 2013.[5] Z. tuberculatus has also been reported in North Africa, Malta, Cyprus,and Canary Islands. [5][9] Z. tuberculatus was trapped in Eastern Europe in Southern Romania between September and October of 2014.[2] Z. tuberculatus has been reported in a few other areas of Europe, including Spain, Greece, and Northern Italy.[2] Z. tuberculatus has also been reported in Asian regions, including Israel and southern Turkey.[2][10]


Habitat[edit]

Similar Vinegar Trap

Z. tuberculatus typically resides on rotting fruit and has been captured via the use of vinegar traps, which earned the species its nickname "vinegar fly." [2]

Life Cycle[edit]

Z. tuberculatus life cycle varies depending on the temperature of the environment.[11]Z. tuberculatus males are sterile at or above 30 degrees Celsius. The mean Z. tuberculatus female life span varies from about 40 days to 60 days, whereas the mean male lifespan varies from about 50 to 200 days when temperature is varied. [11]

Egg[edit]

The eggs of Z. tuberculatus have four filaments, with the posterior filaments being elongated more than the anterior filaments and are spatulated.[3] The lengths of these filaments vary within species.

Larvae[edit]

The larvae of Z. tuberculatus generally grows on over-ripe fruits and has been found to develop on 49 species of fruits. [5] Similar to other drosophilids, the larvae of Z. tuberculatus have a respiratory system containing thoracic and anterior spiracles on either side of the body, which is a systems organization referred to as amphipneustic.[3]

Puparium[edit]

The pupae of Z. tuberculatus have a brick red color. [3]The anterior branches belonging to Z. tuberculatus are clubbed type and vary in number from 11 to 14. [3] The puparial shape (Puparial length:PI) of Z. tuberculatus is 2.59. Puparial shape is an important measurement because it distinguishes Z. tuberculatus from several closely related fly species, including Z. inermis (puparial shape =2.62), Z. cercus (puparial shape =2.40), and Z. burlai (puparial shape = 2.29).[3] Similarly another taxonomic measurement, the horn index (H), discriminates Z. tuberculatus (H= 7.0) from closely related fly species such as Z. verruca (H=10.6) and Z. burlai (H = 7.2).[3] Unlike other species of Drosophila such as D. melanogaster, for Z. tuberculatus pupae synapsis is uncommon and tend to pupariate upwards relate to the ground instead of downwards. [12] However, Z. tuberculatus pupae strongly aggregate similar to other Drosophila species. [12]


Food resources[edit]

Behavior[edit]

Laboratory Behavior[edit]

Z. tuberculatus pupae are extremely difficult to study experimentally because, when space in culture bottles become limited, pupae climb upwards to escape from the bottle and later die. [3] This is true for all species of the Zaprionus genus, except Zaprionus lachaisei. [3]

Pupation site selection[edit]

Though kin selection theory predicts Z. tuberculatus pupae should be more likely to aggregate in an intraspecific manner than interspecifically, however Z tuberculatus does not kin discriminate in site selection. [12]

Species recognition[edit]

"Type 2" songs are sung between two male Z. tuberculatus flies and its function is species recognition.[13]

Mating[edit]

Male courtship behavior[edit]

The male Z. tuberculatus generally makes the first contact with the female Z. tuberculatus by grappling at the female, performing mating displays, then auditory display (song singing). [14] The male performs stationary displays from the female Z. tuberculatus rear end at degrees of 90, 180, or 135 along the long axis of the female body. [14] Still while singing, the male Z. tuberculatus then moves radially around the female in a quarter circle.[14] From a further distance from the female compared to the circling display, the male Z. tuberculatus also performs a dancing which interrupts periods of singing or occurs after singing, but never before. [14] Immediately preceding copulation, then for a second time at the beginning of copulation the male Z. tuberculatus also rubs his legs against the abdomen of the female Z. tuberculatus. [14] The average length of Z. tuberculatus copulation is about 2.25 minutes. [14]

Male Songs[edit]

Male Z. tuberculatus sings two types of songs by vibrating its wings to produce audio. [15] The two song types are "Type 1," which is involved in male courtship, and "type 2," which is used for species recognition both in male Z. tuberculatus flies. [15] When one male mounts another, both males sing, possibly to recognize sex or intimidation tactic to deter other males from attempting to mate with the female Z. tuberculatus flies.

Female courtship behavior[edit]

Include information about what is typical of the genus, including rocking and whining.

At the conclusion of copulation, female Z. tuberculatus protrudes the abdomen and secreted a colorless liquid, which appears to repulse the male Z. tuberculatus.[14] The chemical composition of the colorless liquid has not been studied.

Ecology[edit]

Z. tuberculatus is an invasive species, meaning its spread from one geographical region to others may cause harm to existing ecosystems. [5]

Genetics[edit]

The Z. tuberculatus genome has five rod-shaped chromosomes and one dot-shaped chromosome. [13] The number of type of chromosomes, or the karyotype, for Z. tuberculatus has not changed much throughout evolution, which supports Muller's linkage conservation hypothesis and explains the scarcity of pericentric inversions and translocations. [13][16]

The transposable element mariner occurs in several species, including the melanogaster species and in the Zaprionus genus. [17] The presence of mariner in the Z. tuberculatus occurs through horizontal transfer. Mariner is also present in several members of the melanogaster species subgroup. The rate of divergence of the mariner element between the two species subgroups suggests a slower evolution rate of the mariner transposable element. [17] A slowing mariner mutation rate helps to explain low divergence in the melanogaster species subgroup, but fails to account for reduced divergence in Z. tuberculatus. The specific mechanism by which horizontal transfer of mariner occurs for Z.tuberculatus is currently unknown and is being investigated. Similarly, study of the retrosposon copia also revealed evidence supporting horizontal transfer between Z. tuberculatus and the melanogaster species subgroup. [18]

Interactions with Humans[edit]

Z. tuberculatus is a pest in regions to which it has invaded and infects fruit. [19] Z. tuberculatus is thus capable of negatively impacting fruit which humans eat. but it is unknown which fruit species are most negatively influenced. A close relative of Z. tuberculatus, Z. indianus, is an invasive fly species and is a pest to fig orchards. However, the adverse ecological influences of Z. tuberculatus has only recently been investigated directly.[11]


References[edit]

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  1. ^ a b Tsacas L, David J, Allemand R, Pasteur G, Chassagnard MT, Derridj S.(1977) Biologie évolutive du genre Zaprionus. Recherches sur le complexe spécifique de Z. tuberculatus (Dipt. Drosophilidae). Annales de la Société entomologique de France 13: 391-415
  2. ^ a b c d e Chireceanu, Constantina; Teodoru, Andrei; Chiriloaie, Andrei (2015-01-01). "THE FIRST DETECTION OF FRUIT FLY ZAPRIONUS TUBERCULATUS MALLOCH (DIPTERA: DROSOPHILIDAE) IN THE EASTERN PART OF EUROPE (ROMANIA)". ANNALS OF THE UNIVERSITY OF CRAIOVA. VOL. XX (LVI): 377–382. {{cite journal}}: |volume= has extra text (help)
  3. ^ a b c d e f g h i j k l m n o Yassin, Amir; David, Jean R. (2010-07-23). "Revision of the afrotropical species of Zaprionus (Diptera, Drosophilidae), with descriptions of two new species and notes on internal reproductive structures and immature stages". ZooKeys (51): 33–72. doi:10.3897/zookeys.51.380. ISSN 1313-2989. PMC 3088026. PMID 21594121.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  4. ^ a b c d e f g Patlar, B., Koc, B., Yilmaz, M. and Ozsov, E. D. 2012. First records of Zaprionus tuberculatus (Diptera: Drosophilidae) from the Mediterranean Region, Turkey. Drosophila Information Service 95: 94–96.
  5. ^ a b c d e f Raspi, Alfio; Grassi, Alberto; Benelli, Giovanni (2014-06-01). "Zaprionus tuberculatus (Diptera Drosophilidae): First records from the European mainland". Bulletin of Insectology. 61.
  6. ^ Yassin, Amir; David, Jean R. (2010-07-23). "Revision of the afrotropical species of Zaprionus (Diptera, Drosophilidae), with descriptions of two new species and notes on internal reproductive structures and immature stages". ZooKeys (51): 33–72. doi:10.3897/zookeys.51.380. ISSN 1313-2989. PMC 3088026. PMID 21594121.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  7. ^ Cite error: The named reference supertree was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference supermatrix was invoked but never defined (see the help page).
  9. ^ Ebejer MJ (2015) A short note on additional records of fruitfly (Diptera, Drosophilidae) from Malta. Bulletin of the Entomological Society of Malta 7, p 143.
  10. ^ KUYULU, Akın; YÜCEL, Seda; GENÇ, Hanife (2019-09-02). "Molecular identification of invasive drosophilid Zaprionustuberculatus Malloch (Diptera: Drosophilidae) in Çanakkale, Turkey" (PDF). TURKISH JOURNAL OF ZOOLOGY. 43 (5): 531–535. doi:10.3906/zoo-1905-6. ISSN 1303-6114.
  11. ^ a b c Leivadaras J, Leivadara EI, Vontas J (2017) A new insect, drosophila Zaprionus tuberculatus (Diptera: Drosophilidae), affects the figs on Crete. Abstract of a paper presented at the Panhellenic Entomological Congress (Athens, GR, 2017-09-19/22), p 27.
  12. ^ a b c Ringo, John, and Dowse, Harold. "Pupation Site Selection in Four Drosophilid Species: Aggregation and Contact." Journal of Insect Behavior 25, no. 6 (2012): 578-89.
  13. ^ a b c Su, Y.; Herrick, K.; Farmer, J. L.; Jeffery, D. E. (1992-07-01). "Zaprionus tuberculatus: Chromosome Map and Gene Mapping by DNA in situ Hybridization". Journal of Heredity. 83 (4): 299–304. doi:10.1093/oxfordjournals.jhered.a111216. ISSN 0022-1503.
  14. ^ a b c d e f g Bennet-Clark, H. C.; Leroy, Y.; Tsacas, L. (1980-02-01). "Species and sex-specific songs and courtship behaviour in the genus Zaprionus (Diptera-Drosophilidae)". Animal Behaviour. 28 (1): 230–255. doi:10.1016/S0003-3472(80)80027-3. ISSN 0003-3472.
  15. ^ a b "The role of male song in sex recognition in Zaprionus tuberculatus (Diptera, Drosophilidae) - Washington University in St Louis". wash-primo.hosted.exlibrisgroup.com. Retrieved 2019-10-31.
  16. ^ Muller HJ, 1940. Bearings of the Drosophila work on systematics. In: The new systematics (Huxley J, ed). Oxford: Clarendon Press: 185-268.
  17. ^ a b Maruyama, Kyoko."Interspecific Transfer of the Transposable Element Mariner Between Drosophila and Zaprionus," (PhD diss., Washington University in St.Louis School of Medicine,1991).
  18. ^ De Almeida, Luciane M; Carareto, Claudia MA (2006). "Sequence heterogeneity and phylogenetic relationships between the copia retrotransposon in Drosophila species of the repleta and melanogaster groups". Genetics Selection Evolution. 38 (5): 535. doi:10.1186/1297-9686-38-5-535. ISSN 1297-9686. PMC 2689262. PMID 16954045.{{cite journal}}: CS1 maint: PMC format (link) CS1 maint: unflagged free DOI (link)
  19. ^ "Zaprionus tuberculatus". https. Retrieved 2019-10-31.{{cite web}}: CS1 maint: url-status (link)
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