Skip to Main content Skip to Navigation
Journal articles

Inheritance of Resistance to Cucurbit Powdery Mildew in Bitter Gourd

Abstract : Cucurbit powdery mildew (CPM) caused by Podosphaera xanthii (Px) is an economically important disease of bitter gourd (BG; Momordica charantia) in Asia. High-level resistance to CPM is known in various BG accessions that have been used to develop BG breeding lines that originated in different countries. BG breeding lines THMC 113 (Belize), THMC 143 (India), THMC 153 (Thailand), THMC 167 (India), and THMC 170 (Taiwan) possess high-level resistance to BG Px race (BG-CPM), designated Mc-1 from a field at Kamphaeng Saen, Thailand, whereas THMC 144 (India) is susceptible. Our objective was to determine the inheritance of resistance to BG-CPM race Mc-1. To that end, THMC 144 (India) was crossed with the five resistant lines. The parents and their respective F1, F2, backcross progenies were evaluated for BG-CPM disease severity in inoculated field and growth chamber tests. Resistance to BG-CPM race Mc-1 in the five resistant lines was controlled by at least two independent, recessive genes. Intercrosses of the BG-CPM–resistant lines revealed allelic resistances in four of the breeding lines: THMC 113, THMC 153, THMC 167, and THMC 170. Resistance in THMC 143 was clearly non-allelic for resistance to BG-CPM with the other four BG-CPM–resistant lines.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02622316
Contributor : Migration Prodinra <>
Submitted on : Tuesday, May 26, 2020 - 5:18:12 AM
Last modification on : Thursday, April 15, 2021 - 3:30:28 AM

Links full text

Identifiers

Collections

Citation

Narinder P.S. Dhillon, Supannika Sanguansil, Supornpun Srimat, Suwannee Laenoi, Roland Schafleitner, et al.. Inheritance of Resistance to Cucurbit Powdery Mildew in Bitter Gourd. HortScience, American Society for Horticultural Science, 2019, 54 (6), pp.1013-1016. ⟨10.21273/HORTSCI13906-19⟩. ⟨hal-02622316⟩

Share

Metrics

Record views

65