Response of cotton genotypes to water and heat stress: from field to genes

Iqbal, Muhammad; Ul‐Allah, Sami; Naeem, Muhammad; Ijaz, Muhammad; Sattar, Abdul; Sher, Ahmad

doi:10.1007/s10681-017-1916-2

Cited by 36 publications

(22 citation statements)

References 35 publications

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“…Plants are equipped with internal defense system equipped with antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX)] for ROS scavenging under stressed conditions [19]. The combined drought and heat stress modify plant response in a unique fashion compared to individual stress [14,20,21]. Flag leaf of wheat play an important role in carbohydrates assimilation and antioxidant defense mechanism against abiotic stresses like heat and drought [22,23,24].…”

Section: Introductionmentioning

confidence: 99%

Terminal drought and heat stress alter physiological and biochemical attributes in flag leaf of bread wheat

Sattar¹,

Sher²,

Ijaz³

et al. 2020

PLoS ONE

Self Cite

133

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Section: Introductionmentioning

confidence: 99%

Terminal drought and heat stress alter physiological and biochemical attributes in flag leaf of bread wheat

Sattar¹,

Sher²,

Ijaz³

et al. 2020

PLoS ONE

Self Cite

133

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“…Generally, all growth stages are affected by high temperature but reproductive stage is the most sensitive and critical one. High temperature reduced the growth period and drastically impacted the agronomical aspects particularly of early maturing varieties [26]. Heat stress reduced the plant height, internodes, sympodial branches, monopodial branches, seeds per boll, boll weight, and fiber length during boll developmental process [27] depending on temperature intensity and exposure period.…”

Section: Agronomymentioning

confidence: 99%

“…CMT was significantly reduced under high temperature stress ranging from 44 to 49 C as compared to normal field temperatures (37-39 C) in a Pakistani cultivar MNH-886 during 2013-2014 [87]. Iqbal et al [26] recently evaluated some genes responsible for drought (four) and heat stress [76] in field grown cotton for MAS, they did not found any variations for studied genes responsible for heat stress among the genotypes, thus recommended to include both traits (heat and drought) for selection. Chlorophyll contents and PS-II potential photochemical conversion efficiency of top fourth leaf decreased with increasing ground water-table and high temperature, along with significant alterations in SOD, POD, CAT and MDA activities due to heat stress at flowering and boll formation stages in cotton [88].…”

Section: Biochemistrymentioning

confidence: 99%

Temperature Extremes in Cotton Production and Mitigation Strategies

Zafar¹,

Noor²,

Waqas³

et al. 2018

Past, Present and Future Trends in Cotton Breeding

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Cotton is an important cash crop, providing raw material for different industries and plays crucial role in the economy of several countries. It requires optimum temperature for economic production and causes reduced yield otherwise. Extreme temperature, more importantly, high temperature causes serious yield reduction in cotton by affecting its physiology, biochemistry and quality leading to poor agronomic produce. Freezing temperature also affect the germination percentage and seedling establishment. Several breeding and genomics based studies were conducted to improve the cotton production under high and low temperature stress in cotton. Here we overviewed several agronomic practices to mitigate the effect of extreme temperature, and multiple breeding and molecular approaches to enhance the genetic potential of cotton for temperature tolerance by Marker assisted selection or transgenic approach.

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“…The use of these markers produces inconsistent results because morphological and biochemical markers are influenced by the plant age, the environment and other factors. With the availability of molecular markers, it became possible to conduct rapid and accurate identification at the DNA level without the impact of environmental factors (Iqbal et al 2017;Santhy et al 2019). DNA fingerprinting is the rapid, easy, and most common method to discriminate, identify and characterize various cultivars to protect PBRs and promote marker-assisted breeding (Kalia et al 2011).…”

Section: Introductionmentioning

confidence: 99%

DNA Fingerprinting and Genetic Diversity Assessment of GM Cotton Genotypes for Protection of Plant Breeder Rights

Jamil¹

2021

IJAB

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DNA fingerprinting is rapid, easy, and efficient method for discrimination, identification and characterization of various genotypes for protection of plant breeder’s rights (PBRs). Present study was designed for DNA fingerprinting and genetic diversity assessment of 25 GM cotton genotypes (possessing Cry1Ac gene) using 297 SSR markers through conventional PCR and Polyacrylamide gel electrophoresis. Out of 297 SSR markers, 25 markers were not amplified, 28 were monomorphic and 244 were polymorphic. A total of 1537 alleles were amplified among which 1294 (84.18%) were polymorphic. PIC value in our study ranged from 0.08 to 0.93 with an average of 0.73. Unique allelic pattern was observed for nineteen genotypes whereas six genotypes were identified using two-step identification methods. The UPGMA dendrogram divided the genotypes into two distinct clusters. Cluster I was comprised of 20 genotypes whereas cluster II was comprised of four genotypes. MNH-1020 did not obey any clustering and remained separated. The results of the structure analysis were complementary to cluster analysis and the population was divided into two subgroups. Our results evidenced narrow genetic base of the cotton genotypes cultivated in Punjab Pakistan due to use of common parents in the pedigree/parentage. Further, we proposed a core set of markers for future DNA fingerprinting and genetic diversity studies. The information generated in this study will be helpful in variety registration and subsequent protection under PBRs. Further our findings will be useful in selection of SSR markers for future studies which are focused on DNA fingerprinting and genetic diversity assessment. © 2021 Friends Science Publishers

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Response of cotton genotypes to water and heat stress: from field to genes

Cited by 36 publications

References 35 publications

Terminal drought and heat stress alter physiological and biochemical attributes in flag leaf of bread wheat

Terminal drought and heat stress alter physiological and biochemical attributes in flag leaf of bread wheat

Temperature Extremes in Cotton Production and Mitigation Strategies

DNA Fingerprinting and Genetic Diversity Assessment of GM Cotton Genotypes for Protection of Plant Breeder Rights

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