eprintid: 11377
rev_number: 8
eprint_status: archive
userid: 3170
dir: disk0/00/01/13/77
datestamp: 2020-02-21 04:20:06
lastmod: 2020-02-21 04:21:34
status_changed: 2020-02-21 04:20:06
type: article
metadata_visibility: show
creators_name: Dhillon, M K
creators_name: Hasan, F
creators_name: Tanwar, A K
creators_name: Jaba, J
creators_name: Singh, N
creators_name: Sharma, H C
icrisatcreators_name: Jaba, J
affiliation: Division of Entomology, ICAR-Indian Agricultural Research Institute, (New Delhi)
affiliation: Division of Genetics,ICAR-Indian Agricultural Research Institute, (New Delhi)
affiliation: ICRISAT (Patancheru)
country: India
title: Genetic regulation of diapause and associated traits in Chilo partellus (Swinhoe)
ispublished: pub
subjects: s2.7
divisions: CRPS2
full_text_status: public
keywords: Entomology, Diapause, Insects, Chilo partellus, Endocrine
note: Laboratory assistance of Mr. Suraj Sharma, Rajender Kumar and S.S. Rawat during experiments is gratefully
acknowledged. Funding for research was provided by Department of Science and Technology, New Delhi,
India (SERB No: SB/SO/AS-020/2013) and National Agricultural Science Fund, Indian Council of Agricultural
Research, New Delhi, India (NASF/ABP-5017/2016-17).
abstract: Diapause is an endocrine controlled arrested metabolic state to delay development or reproduction
under unfavorable conditions. To gain an understanding of importance of diapause for ecological
adaptation, it is important to study regulation of diapause in insects. We examined genetics of
diapause in Chilo partellus by crossing the hibernating (HD), aestivating (AD), post-hibernating (PHD),
post-aestivating (PAD), and nondiapause (ND) strains. Reciprocal crosses were also made to gain
full understanding of diapause regulation and the maternal effects, if any. Data were recorded on
fecundity, egg hatching, larval survival, diapause induction and termination, adult emergence, and
morphometrics of larvae, pupae and adults in the parents (P1, P2), F1 hybrids, and the reciprocal crosses.
Genetic analysis showed that AD strain is general combiner, which also improved egg hatching, larval
survival, diapause termination, adult emergence and proportion of females in the progenies. Incidence
of diapause was highest in HD × AD, whereas termination was greatest in PHD × AD. However, ND
strain and its reciprocal crosses with other strains did not exhibit any noticeable developmental
response associated with diapause. Specific combining ability analysis suggested that where PHD and
AD strains exist together there will be likely reduction in diapause incidence, increased survival with
greater fitness and faster multiplication of their progenies resulting in outbreak of C. partellus. Degree
of dominance estimates revealed that diapause, developmental and morphometric traits in C. partellus
are governed by over dominance gene effects, and mainly depend on parental diapause history.
date: 2020-02
date_type: published
publication: Scientific Reports (TSI)
volume: 10
number: 1
publisher: Nature Research
pagerange: 1-11
id_number: doi:10.1038/s41598-020-58640-0
refereed: TRUE
issn: 2045-2322
official_url: https://doi.org/10.1038/s41598-020-58640-0
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Genetic+regulation+of+diapause+and+associated+traits+in+Chilo+partellus&btnG=
funders: Department of Science and Technology, New Delhi
funders: National Agricultural Science Fund
funders: Indian Council of Agricultural Research, New Delhi, India
citation:   Dhillon, M K and Hasan, F and Tanwar, A K and Jaba, J and Singh, N and Sharma, H C  (2020) Genetic regulation of diapause and associated traits in Chilo partellus (Swinhoe).  Scientific Reports (TSI), 10 (1).  pp. 1-11.  ISSN 2045-2322     
document_url: http://oar.icrisat.org/11377/1/sorghum%20stem%20borer%20genetics%20of%20daipuse%20IARI%20ICRISAT.pdf