Exploring molecular variation and combining ability of local and exotic bread wheat genotypes under well-watered and drought conditions

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e18994 - e18994

Published: Feb. 27, 2025

Drought is one of the most environmental stressors, significantly affecting wheat production, particularly in face accelerating climate change. Therefore, developing drought-resistant, high-yielding varieties essential to ensure sustainable production and maintain global food security as world population rapidly grows. This study aimed evaluate genetic variation local imported bread genotypes through simple sequence repeat (SSR) markers assess their combining ability identify top-performing under both normal drought-stress environments. SSR revealed significant diversity among parental genotypes, which were utilized develop 28 F1 crosses utilizing diallel mating design. Field trials well-watered drought-stressed environments demonstrated that drought reduced all measured agronomic traits. The categorized into five clusters based on tolerance, ranging from highly sensitive (group-E) robustly drought-resistant (group-A). variety Sids-12 (P2) was identified an excellent combiner for breeding shorter early-maturing cultivars Line-117 (P3), Line-144 (P4), Line-123 (P5) improving grain yield related traits conditions. P1×P5, P3×P8, P4×P5, P6×P7 possessed superior performance Key traits, including plant height, grains per spike, 1,000-grain weight, spikes plant, displayed strong correlations with yield, providing effective approach indirect selection drought-prone

Language: Английский

SALINITY, VERTICILLIUM WILT TOLERANCE AND GENETIC DIVERSITY ANALYSIS OF UPLAND COTTON GENOTYPES

Advances in Biology & Earth Sciences, Journal Year: 2024, Volume and Issue: 9(2), P. 242 - 252

Published: Aug. 4, 2024

Cotton is one of the most economically important crops. Screening and selection salt-tolerant cotton genotypes using DNA molecular markers not only introduces tolerant cultivars valuable for hybridization breeding programs, but also identifies regions implicated in salinity tolerance mechanism. resistant to stress Verticillium wilt disease The lowest Disease Severity Index was recorded AP-317 (0.37) Tashkent-2 (0.32) varieties. A total 63 bands were generated based on 12 ISSR primers, 50 which polymorphic. highest PIC value UBC841 (0.466). Azerbaijan origin Kirqizistan-174 Kyrgyzstan distant (0.358) at same time showed high resistance wilt. obtained results that an effective tool determining genetic variation identification cultivars.

Language: Английский

Inter simple sequence repeat (ISSR) based genetic and morphological polymorphism of Azerbaijani grape (Vitis vinifera) genotypes

Genetic Resources and Crop Evolution, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Language: Английский