Gene pyramiding and multiple character breeding

Kushwah, Ashutosh; Gupta, Soma; Bindra, Shayla; Johal, Norah; Singh, Inderjit; Bharadwaj, C.; Dixit, G. P.; Gaur, Pooran M.; Nayyar, Harsh; Singh, Sarvjeet

doi:10.1016/b978-0-12-818299-4.00006-3

Cited by 16 publications

(8 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To improve cultivated crops, beneficial traits from wild relatives have since been crossed into them. Unfortunately, this type of crossing is only possible for monogenic traits and many useful traits in wild species, such as abiotic stress tolerance, are polygenic and difficult to fix by segregation during crossing and backcrossing (Kushwah et al, 2020). The de novo domestication of wild species by genome editing provides a promising alternative breeding strategy (Lo ´pez-Marque ´s et al, 2020; Figure 4D).…”

Section: De Novo Domesticationmentioning

confidence: 99%

Genome engineering for crop improvement and future agriculture

Gao

2021

Cell

516

340

View full text Add to dashboard Cite

Section: De Novo Domesticationmentioning

confidence: 99%

Genome engineering for crop improvement and future agriculture

Gao

2021

Cell

516

340

View full text Add to dashboard Cite

“…It is further crossed with another donor parent for pyramiding two or more genes of interest. Although this technique is considered to have low satisfactory and be time consuming, its precision for gene pyramiding is good [99,100]. In the other breeding technique(Figure 2B), the recurrent parent is crossed with donor parents to obtain F1 hybrids, and these are intercrossed to get improved F1 and this is further backcrossed with the recurrent parent to produce an improved recurrent parent.…”

Section: Marker Assisted Backcrossingmentioning

confidence: 99%

Gene Pyramiding for Sustainable Crop Improvement against Biotic and Abiotic Stresses

Dormatey¹,

Sun²,

Ali³

et al. 2020

Preprint

View full text Add to dashboard Cite

Sustainable agricultural production is endangered by several ecological factors such as drought, extreme temperatures, excessive salts, parasitic ailments, and insect pest infestation. These challenging environmental factors may have adverse effects on future agriculture production in many countries. In modern agriculture, conventional crop breeding techniques alone are inadequate for achieving the increasing population’s food demand on a sustainable basis. The advancement of molecular genetics and related technologies are promising tools for the selection of new crop species. Gene pyramiding through marker assisted selection (MAS) and other techniques have accelerated the development of durable resistant/tolerant lines with high accuracy in the shortest possible period of time for agricultural sustainability. Gene stacking has not been fully utilized for biotic stress resistance development and quality improvement in most of the major cultivated crops. This review emphasizes on gene pyramiding techniques that are being successfully deployed in modern agriculture for improving crop tolerance to abiotic and biotic stresses for sustainable crop improvement.

show abstract

“…Chickpea is known to have narrow genetic base as compared to most other legumes [ 40 , 41 ]. Due to relatively low levels of polymorphism, inter-specific crosses between C .…”

Section: Introductionmentioning

confidence: 99%

Identification of stable heat tolerance QTLs using inter-specific recombinant inbred line population derived from GPF 2 and ILWC 292

et al. 2021

Self Cite

View full text Add to dashboard Cite

Heat stress during reproductive stages has been leading to significant yield losses in chickpea (Cicer arietinum L.). With an aim of identifying the genomic regions or QTLs responsible for heat tolerance, 187 F8 recombinant inbred lines (RILs) derived from the cross GPF 2 (heat tolerant) × ILWC 292 (heat sensitive) were evaluated under late-sown irrigated (January-May) and timely-sown irrigated environments (November-April) at Ludhiana and Faridkot in Punjab, India for 13 heat tolerance related traits. The pooled ANOVA for both locations for the traits namely days to germination (DG), days to flowering initiation (DFI), days to 50% flowering (DFF), days to 100% flowering (DHF), plant height (PH), pods per plant (NPP), biomass (BIO), grain yield (YLD), 100-seed weight (HSW), harvest index (HI), membrane permeability index (MPI), relative leaf water content (RLWC) and pollen viability (PV)) showed a highly significant difference in RILs. The phenotyping data coupled with the genetic map comprising of 1365 ddRAD-Seq based SNP markers were used for identifying the QTLs for heat tolerance. Composite interval mapping provided a total of 28 and 23 QTLs, respectively at Ludhiana and Faridkot locations. Of these, 13 consensus QTLs for DG, DFI, DFF, DHF, PH, YLD, and MPI have been identified at both locations. Four QTL clusters containing QTLs for multiple traits were identified on the same genomic region at both locations. Stable QTLs for days to flowering can be one of the major factors for providing heat tolerance as early flowering has an advantage of more seed setting due to a comparatively longer reproductive period. Identified QTLs can be used in genomics-assisted breeding to develop heat stress-tolerant high yielding chickpea cultivars.

show abstract

Gene pyramiding and multiple character breeding

Cited by 16 publications

References 138 publications

Genome engineering for crop improvement and future agriculture

Genome engineering for crop improvement and future agriculture

Gene Pyramiding for Sustainable Crop Improvement against Biotic and Abiotic Stresses

Identification of stable heat tolerance QTLs using inter-specific recombinant inbred line population derived from GPF 2 and ILWC 292

Contact Info

Product

Resources

About