Physiological aspects of inter-specific gene introgression to improve drought tolerance in safflower

Espanani, Soheila; Majidi, Mohammad Mahdi; Saeidi, Ghodratollah; Alaei, Hossein

doi:10.1007/s10681-019-2477-3

Cited by 2 publications

(6 citation statements)

References 27 publications

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“…Therefore, selection of these superior progenies can lead to high‐yielding varieties for autumn planting. Previously, we documented transgressive segregation in progenies derived from interspecific hybridization in initial and advanced generations for drought tolerance (Espanani, Majidi, Saeidi, & Alaei, 2019).…”

Section: Discussionmentioning

confidence: 97%

“…The genetic variation available in cultivated species for adaptation to climate change is generally limited and it may be impossible to achieve major advances by resorting only to alleles present in the cultivated gene pool. Recently, interspecific hybridization using three species (one cultivated and two close relatives) has been successfully used to expand genetic resources and to introduce exogenous genes to cultivated species of safflower for drought tolerance (Espanani, Majidi, Saeidi, & Alaei, 2019; Espanani, Majidi, Saeidi, Alaei, & Rezaei, 2019). However, the potential of these populations and their parents for adaptation to autumn sowing was not clear.…”

Section: Discussionmentioning

confidence: 99%

“…Cultivated safflower ( C. tinctorius , Goldasht cultivar) (abbreviated as T) and two close wild relatives including C. Oxyacanthus (abbreviated as O, PI 426185), and C. palaestinus (abbreviated as P, PI 235663) used as the parent of crosses (Espanani, Majidi, Saeidi, & Alaei, 2019). The inbred lines were developed from three interspecific hybridizations between the cultivated safflower and two wild relatives.…”

Section: Methodsmentioning

confidence: 99%

“…The F2.7 lines were advanced by single seed descent and natural selection. Development and management of populations performed based on the previous studies (Espanani, Majidi, Saeidi, & Alaei 2019; Espanani, Majidi, Saeidi, Alaei, & Rezaei 2019). The check cultivars were Sina (IC105), Padideh (IC100), and Golmehr (IC103), which were previously introduced for autumn planting in Iran.…”

Section: Methodsmentioning

confidence: 99%

“…Espanani, Majidi, Saeidi, Alaei, and Rezaei (2019) reported that interspecific populations derived from C. tinctorius × C. palaestinus and C. tinctorius × C. oxyacanthus (crosses of two wild relatives with C. tinctorius as their common parent) had higher performance than C. palaestinus × C. oxyacanthus population. Recently, we developed three populations from interspecific hybridization in safflower which showed a high variation for drought tolerance (Espanani, Majidi, Saeidi, & Alaei, 2019; Espanani, Majidi, Saeidi, Alaei, & Rezaei 2019). Considering the adverse changes in climate conditions such as global warming and water shortage, autumn sowing in safflower can be very helpful for its production.…”

Section: Introductionmentioning

confidence: 99%

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Breeding safflower for adaptation to autumn sowing by interspecific hybridization

et al. 2023

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In the light of current global climate change, gene introgression from wild relatives is a key strategy for increasing adaptation of crops that lost their variation during evolutionary bottleneck. Fall‐sown safflower leads to earlier spring growth and potentially higher productivity than the spring‐sown safflower, because of escaping from the terminal stresses of drought, heat, disease, and pests as well as efficient use of winter precipitation. During the last decade, we developed advanced generations of three sets of recombinant inbred lines (RILs) derived from three crosses of Carthamus tinctorius × Carthamus palaestinus (TP), C. tinctorius × Carthamus oxyacanthus (TO) and C. palaestinus × C. oxyacanthus (PO). The objectives of this study were to assess the efficiency of gene introgression from two wild relatives of safflower and genetic variation of derived RILs in terms of adaptation to autumn sowing and cold tolerance in the field. The results showed a continuous variation for seed yield and oil content in RILs, indicating the existence of transgressive segregation in lines. Comparison of three interspecific populations indicated that lines derived from TP crosses showed high potential for autumn planting, winter hardness, and productivity of seed and oil yield. However, the RILs derived from PO and TO had higher chlorophyll fluorescence (Fv/Fm) than TP population. Our results indicated that restoring lost genes in safflower is possible by introgression from its close relatives (especially C. palaestinus species). Identified superior RILs can be checked for other biotic and abiotic tolerance to develop new varieties in this valuable oil seed crop.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%