Oil and seed yield stability in a worldwide collection of safflower under arid environments of Iran

Ebrahimi, Fatemeh; Majidi, Mohammad Mahdi; Arzani, Ahmad; Mohammadi-Nejad, Ghasem

doi:10.1007/s10681-016-1779-y

Cited by 19 publications

(15 citation statements)

References 25 publications

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“…Safflower is also used for extraction of dyes, several medicinal applications and as a plant factory for production of pharmaceuticals (Dajue and Mündel, 1996 ; Flider, 2013 ; Carlsson et al, 2014 ; Zhou et al, 2014 ). Additionally, its ability to grow under low moisture and high salinity conditions would give it a competitive edge over other oilseed crops in arid zones (Kaya et al, 2011 ; Bahrami et al, 2014 ; Yeilaghi et al, 2015 ; Ebrahimi et al, 2016 ). Currently, safflower is cultivated in around 20 countries in a total area of 1,140,002 hectares and production of 948,516 tons (FAOSTAT) 1 .…”

Section: Introductionmentioning

confidence: 99%

Association Mapping for Important Agronomic Traits in Safflower (Carthamus tinctorius L.) Core Collection Using Microsatellite Markers

Ambreen

Kumar

et al. 2018

Front. Plant Sci.

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Carthamus tinctorius L. (safflower) is an important oilseed crop producing seed oil rich in unsaturated fatty acids. Scarcity of identified marker-trait associations is a major limitation toward development of successful marker-assisted breeding programs in safflower. In the present study, a safflower panel (CartAP) comprising 124 accessions derived from two core collections was assayed for its suitability for association mapping. Genotyping of CartAP using microsatellite markers revealed significant genetic diversity indicated by Shannon information index (H = 0.7537) and Nei's expected heterozygosity (I = 0.4432). In Principal Coordinate Analysis, the CartAP accessions were distributed homogeneously in all quadrants indicating their diverse nature. Distance-based Neighbor Joining analysis did not delineate the CartAP accessions in consonance with their geographical origin. Bayesian analysis of population structure of CartAP demonstrated the unstructured nature of the association panel. Kinship analysis at population (Gij) and individual level (Fij) revealed absence of or weak relatedness between the CartAP accessions. The above parameters established the suitability of CartAP for association mapping. We performed association mapping using phenotypic data for eight traits of agronomic value (viz., seed oil content, oleic acid, linoleic acid, plant height, number of primary branches, number of capitula per plant, 100-seed weight and days to 50% flowering) available for two growing seasons (2011–2012 and 2012–2013) through General Linear Model and Mixed Linear Model. Our study identified ninety-six significant marker-trait associations (MTAs; P < 0.05) of which, several MTAs with correlation coefficient (R2) > 10% were consistently represented in both models and in both seasons for traits viz., oil content, oleic acid content, linoleic acid content and number of primary branches. Several MTAs with high R2-values were detected either in a majority or in some environments (models and/or seasons). Many MTAs were also common between traits (viz., oleic/linoleic acid content; plant height/days to 50% flowering; number of primary branches/number of capitula per plant) that showed positive or negative correlation in their phenotypic values. The marker-trait associations identified in this study will facilitate marker-assisted breeding and identification of genetic determinants of trait variability.

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Section: Introductionmentioning

confidence: 99%

Association Mapping for Important Agronomic Traits in Safflower (Carthamus tinctorius L.) Core Collection Using Microsatellite Markers

Ambreen

Kumar

et al. 2018

Front. Plant Sci.

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“…Stress tolerance index (STI) was highly correlated with CD indicating that this trait could be the most responsible trait to produce higher yield at water deficit conditions in safflower. Ebrahimi et al (2016) determined genotypes with acceptable performance in safflower germplasm using the additive main effects and multiplicative interaction (AMMI) biplot. The PCA biplot clearly clarified visual differentiation among the safflower genotypes based on SSR marker (Bahmankar et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…In total 219 lines from all three selection methods that were applied at F3 generation along with the parental genotypes and three check lines (CTNHU, CTNTJ2, CTNEG1) (Ebrahimi et al, 2016) were evaluated in the field under two irrigation regimes of water stress and non-stress conditions, separately during 2014. The experiment was laid out as simple lattice design of 15 × 15 (225 genotypes) with two replications in each irrigation regime.…”

Section: Evaluation and Selection In F4 Generationsmentioning

confidence: 99%

Evaluating Selection Methods for Carthamus Interspecific Crosses under Different Water Conditions

et al. 2019

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Core Ideas Wild relatives of safflower are suitable source of genes for improvement of cultivated species.Single plant selection is simple and results in genetic gain in safflower interspecific hybridization under both water stress and non‐stress conditions.Indirect selection is more efficient than direct selection for tolerance to water limited conditions in safflower interspecific crosses. Wild relatives of safflower (Carthamus tinctorius L.) are a potential source of favorable genes for its further improvement through interspecific crosses. Therefore, two wild safflower species (C. palaestinus and C. oxyacanthus) were crossed with the cultivated counterpart in 2011. Three interspecific population progenies including C. palaestinus × C. tinctorius (PT), C. tinctorius × C. oxyacanthus (TO), and C. oxyacanthus × C. palaestinus (OP) were developed. Three selection methods including single plant selection (SPS), modified selected bulk (MSB) and modified bulk (MB) were applied at F3 generation in 2013. Selected lines were evaluated in F4 and F5 generations under water stress and non‐stress conditions during 2014 and 2015. The SPS and MSB methods resulted in higher genetic gain compared to MB under both moisture conditions. Even though, SPS and MSB were equally efficient in selecting better genotypes. SPS was much easier, less laborious, faster and cost‐effective method than MSB. A high percentage of agreement was observed between visual selection and selection based on actual yield only for SPS method by evaluating 2920 single plants. Capitulum diameter (CD) was a good criterion for visual selection of superior genotypes in the field condition under both moisture environments. The PT and TO lines that were produced by SPS and MSB methods showed slightly higher values for most measured traits when compared to the lines which were produced by MB selection method. The SPS‐derived lines were slightly earlier on maturity compared to the lines resulted from other selection methods.

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“…Use of wild relatives as donor parents in breeding programmes may improve genetic variability, seed yield and drought tolerance of cultivated safflower. Although drought stress response has been studied in safflower and some of its wild relatives (Ebrahimi, Majidi, Arzani, & Mohammadi‐Nejad, ; Majidi et al, ), understanding interspecific crosses and the possibility of using derived recombinant lines to improve drought tolerance need to be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…Although drought stress response has been studied in safflower and some of its wild relatives (Ebrahimi, Majidi, Arzani, & Mohammadi-Nejad, 2016;Majidi et al, 2011), understanding interspecific crosses and the possibility of using derived recombinant lines to improve drought tolerance need to be addressed.…”

Section: Introductionmentioning

confidence: 99%

Wide hybridization and introgression breeding in safflower: Effectiveness of different selection methods

et al. 2019

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Possibility of using interspecific hybridization to increase genetic diversity of drought tolerance in safflower (Carthamus tinctorius L.) and effectiveness of different selection methods is poorly understood. The main objectives of this study were to evaluate the effectiveness of (a) interspecific hybridization to expand genetic diversity in safflower for agronomic traits and drought tolerance in advance generations and (b) different selection methods (direct vs. indirect) for improving seed yield. Interspecific hybridizations were performed between species of C. tinctorius × C. palaestinus (TP), C. palaestinus × C. oxyacantha (PO) and C. tinctorius × C. oxyacantha (TO). Based on the field screening of genotypes in F3 generation, four groups of selected genotypes (derived from combination of direct and indirect selection under both drought and normal environments along with selection based on drought tolerance index (STI)) were evaluated in F4 and F5 generations. Indirect selection for seed yield was significantly more efficient than direct selection. Selection in stress environment resulted to more efficiency than selection in normal environment. No significant difference was observed between direct selection and selection based on STI. The result showed that TP was the best population to combine high seed yield and drought tolerance in safflower.

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Oil and seed yield stability in a worldwide collection of safflower under arid environments of Iran

Cited by 19 publications

References 25 publications

Association Mapping for Important Agronomic Traits in Safflower (Carthamus tinctorius L.) Core Collection Using Microsatellite Markers

Association Mapping for Important Agronomic Traits in Safflower (Carthamus tinctorius L.) Core Collection Using Microsatellite Markers

Evaluating Selection Methods for Carthamus Interspecific Crosses under Different Water Conditions

Wide hybridization and introgression breeding in safflower: Effectiveness of different selection methods

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