Sexual maturation, mating propensity and remating incidence of Zeugodacus tau (Walker) (Diptera

Tephritidae)

Yim Theng Ooi, Wee Suk Ling

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Zeugodacus tau (Walker) (Diptera: Tephritidae) is a serious fruit fly pest of cucurbits. The pest is gaining global attention in recent years due to population expansion and its potential in invading new territory as the species share a similar host range with the melon fly, Zeugodacus cucurbitae. We determined the species' sexual maturation, mating propensity and remating incidence to better understand its basic reproductive ecology. Newly emerged wildish male and female flies were housed with two sexually mature and virgin partners and their first and multiple mating incidences were recorded over 60 days. We show that some females and males of Z. tau began to mate at 16 and 18 days-after-emergence (DAE), respectively; but most adults mated for the first time over a wide age range within a 60-day observation period (male: 26-40 DAE; female: 21-45 DAE). The males demonstrated a higher mating frequency and a lower refractory period (4.8 ± 0.4 times; 3 days) than the females (1.4 ± 0.1 times; 14 days). Multiple matings are common in males; with 48.4% remated for at least five times. The ratio of singly-mated females (51.6%) to those multiply-mated (48.4%) was almost 1:1; with one record of a female mated for as many as five times. Under normal circumstances, Z. tau was showed to copulate for at least 10-11 h. Further investigation revealed that high female remating incidence was neither due to a shorter copulation duration nor insufficient sperm transferred during mating. Comparison of the dual- and multiple-mate choice methods in determining sexual maturity attainment of Z. tau yielded almost similar results as the profiles generally overlapped when the species is sexually most active (26-45 DAE). These findings provide useful inputs for future behavioural and reproductive investigations, as well as optimization of ecological models in area-wide control of fruit fly pests.

Original languageEnglish
Pages (from-to)451-457
Number of pages7
JournalJournal of Asia-Pacific Entomology
Volume19
Issue number2
DOIs
Publication statusPublished - 1 Jun 2016

Fingerprint

Tephritidae
incidence
eclosion
pests
fruit flies
Bactrocera cucurbitae
mating frequency
Cucurbitaceae
mating behavior
sexual maturity
host range
copulation
spermatozoa
ecology
duration

Keywords

  • First mating
  • Refractory period
  • Remating
  • Sexual maturity
  • Sperm transfer

ASJC Scopus subject areas

  • Insect Science

Cite this

Sexual maturation, mating propensity and remating incidence of Zeugodacus tau (Walker) (Diptera : Tephritidae). / Ooi, Yim Theng; Suk Ling, Wee.

In: Journal of Asia-Pacific Entomology, Vol. 19, No. 2, 01.06.2016, p. 451-457.

Research output: Contribution to journalArticle

@article{ce0a46f3c00e4c499e49c9eb3c69a681,
title = "Sexual maturation, mating propensity and remating incidence of Zeugodacus tau (Walker) (Diptera: Tephritidae)",
abstract = "Zeugodacus tau (Walker) (Diptera: Tephritidae) is a serious fruit fly pest of cucurbits. The pest is gaining global attention in recent years due to population expansion and its potential in invading new territory as the species share a similar host range with the melon fly, Zeugodacus cucurbitae. We determined the species' sexual maturation, mating propensity and remating incidence to better understand its basic reproductive ecology. Newly emerged wildish male and female flies were housed with two sexually mature and virgin partners and their first and multiple mating incidences were recorded over 60 days. We show that some females and males of Z. tau began to mate at 16 and 18 days-after-emergence (DAE), respectively; but most adults mated for the first time over a wide age range within a 60-day observation period (male: 26-40 DAE; female: 21-45 DAE). The males demonstrated a higher mating frequency and a lower refractory period (4.8 ± 0.4 times; 3 days) than the females (1.4 ± 0.1 times; 14 days). Multiple matings are common in males; with 48.4{\%} remated for at least five times. The ratio of singly-mated females (51.6{\%}) to those multiply-mated (48.4{\%}) was almost 1:1; with one record of a female mated for as many as five times. Under normal circumstances, Z. tau was showed to copulate for at least 10-11 h. Further investigation revealed that high female remating incidence was neither due to a shorter copulation duration nor insufficient sperm transferred during mating. Comparison of the dual- and multiple-mate choice methods in determining sexual maturity attainment of Z. tau yielded almost similar results as the profiles generally overlapped when the species is sexually most active (26-45 DAE). These findings provide useful inputs for future behavioural and reproductive investigations, as well as optimization of ecological models in area-wide control of fruit fly pests.",
keywords = "First mating, Refractory period, Remating, Sexual maturity, Sperm transfer",
author = "Ooi, {Yim Theng} and {Suk Ling}, Wee",
year = "2016",
month = "6",
day = "1",
doi = "10.1016/j.aspen.2016.04.013",
language = "English",
volume = "19",
pages = "451--457",
journal = "Journal of Asia-Pacific Entomology",
issn = "1226-8615",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Sexual maturation, mating propensity and remating incidence of Zeugodacus tau (Walker) (Diptera

T2 - Tephritidae)

AU - Ooi, Yim Theng

AU - Suk Ling, Wee

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Zeugodacus tau (Walker) (Diptera: Tephritidae) is a serious fruit fly pest of cucurbits. The pest is gaining global attention in recent years due to population expansion and its potential in invading new territory as the species share a similar host range with the melon fly, Zeugodacus cucurbitae. We determined the species' sexual maturation, mating propensity and remating incidence to better understand its basic reproductive ecology. Newly emerged wildish male and female flies were housed with two sexually mature and virgin partners and their first and multiple mating incidences were recorded over 60 days. We show that some females and males of Z. tau began to mate at 16 and 18 days-after-emergence (DAE), respectively; but most adults mated for the first time over a wide age range within a 60-day observation period (male: 26-40 DAE; female: 21-45 DAE). The males demonstrated a higher mating frequency and a lower refractory period (4.8 ± 0.4 times; 3 days) than the females (1.4 ± 0.1 times; 14 days). Multiple matings are common in males; with 48.4% remated for at least five times. The ratio of singly-mated females (51.6%) to those multiply-mated (48.4%) was almost 1:1; with one record of a female mated for as many as five times. Under normal circumstances, Z. tau was showed to copulate for at least 10-11 h. Further investigation revealed that high female remating incidence was neither due to a shorter copulation duration nor insufficient sperm transferred during mating. Comparison of the dual- and multiple-mate choice methods in determining sexual maturity attainment of Z. tau yielded almost similar results as the profiles generally overlapped when the species is sexually most active (26-45 DAE). These findings provide useful inputs for future behavioural and reproductive investigations, as well as optimization of ecological models in area-wide control of fruit fly pests.

AB - Zeugodacus tau (Walker) (Diptera: Tephritidae) is a serious fruit fly pest of cucurbits. The pest is gaining global attention in recent years due to population expansion and its potential in invading new territory as the species share a similar host range with the melon fly, Zeugodacus cucurbitae. We determined the species' sexual maturation, mating propensity and remating incidence to better understand its basic reproductive ecology. Newly emerged wildish male and female flies were housed with two sexually mature and virgin partners and their first and multiple mating incidences were recorded over 60 days. We show that some females and males of Z. tau began to mate at 16 and 18 days-after-emergence (DAE), respectively; but most adults mated for the first time over a wide age range within a 60-day observation period (male: 26-40 DAE; female: 21-45 DAE). The males demonstrated a higher mating frequency and a lower refractory period (4.8 ± 0.4 times; 3 days) than the females (1.4 ± 0.1 times; 14 days). Multiple matings are common in males; with 48.4% remated for at least five times. The ratio of singly-mated females (51.6%) to those multiply-mated (48.4%) was almost 1:1; with one record of a female mated for as many as five times. Under normal circumstances, Z. tau was showed to copulate for at least 10-11 h. Further investigation revealed that high female remating incidence was neither due to a shorter copulation duration nor insufficient sperm transferred during mating. Comparison of the dual- and multiple-mate choice methods in determining sexual maturity attainment of Z. tau yielded almost similar results as the profiles generally overlapped when the species is sexually most active (26-45 DAE). These findings provide useful inputs for future behavioural and reproductive investigations, as well as optimization of ecological models in area-wide control of fruit fly pests.

KW - First mating

KW - Refractory period

KW - Remating

KW - Sexual maturity

KW - Sperm transfer

UR - http://www.scopus.com/inward/record.url?scp=84964994102&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84964994102&partnerID=8YFLogxK

U2 - 10.1016/j.aspen.2016.04.013

DO - 10.1016/j.aspen.2016.04.013

M3 - Article

VL - 19

SP - 451

EP - 457

JO - Journal of Asia-Pacific Entomology

JF - Journal of Asia-Pacific Entomology

SN - 1226-8615

IS - 2

ER -