Expressed sequence tag-simple sequence repeat-based molecular variance in two Salicornia (Amaranthaceae) populations

Xu, Zhenkang; Ali, Zulfiqar; Yi, Jung-Yoon; He, Xiaoling; Zhang, D Y; Yu, Gang; Khan, Asif Ali; Khan, Ihsanullah; X, H

doi:10.4238/vol10-2gmr1321

Cited by 11 publications

(8 citation statements)

References 33 publications

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“…The discriminating power of morphometric traits between populations of Salicornia bigelovii was strong (70-100%) for most, but not all, populations (e.g., Sb7 and Sb8, with 50% correct classification each) (Figure 1). The average level of discrimination (83.0%) was as high as the one reported recently between two Salicornia populations and was based on molecular markers [29]. In this analysis, seed yield plant −1 and plant height were the largest contributors to discrimination between populations, followed, in decreasing order, by number of seeds g −1 and seeds (spike segment) −1 .…”

Section: Discussionsupporting

confidence: 57%

The Dwarf Saltwort (Salicornia bigeloviiTorr.): Evaluation of Breeding Populations

Jaradat¹,

Bücking

Merah³

et al. 2012

ISRN Agronomy

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Breeding populations of the dwarf saltwort (Salicornia bigelovii Torr. (Chenopodiaceae)) have been evaluated under high seawater salinity (45 dS m −1 ) for phenotypic, morphometric, biomass and seed traits to select and develop genotypes for biomass, seed, and vegetable production using sea and brackish water and marginal land resources. The largest variation between populations was found for harvest index and the smallest for number of spikes per plant; however, a more complex structure of variance was found when fixed and random factors were considered. Multivariate relationships between and within architectural and fitnessrelated traits suggest that biomass and seed yield gains can be achieved by manipulating plant architecture. Discriminant analyses between populations resulted in populations being correctly (mean 83%) classified. Prediction (R 2 ) and validation (Q 2 ) coefficients in the partial least squares regression modeling, using three phenotypic markers, 12 morphometric traits, nine populations and 24 families(populations), were 0.86 and 0.78; respectively (P < 0.002) for plant dry weight and 0.89 and 0.83, respectively (P < 0.001) for seed yield per plant. We developed a procedure to identify populations and families within populations with favorable combinations of phenotypic and morphometric traits that are suitable for the development of Salicornia varieties for biomass, seed, or green vegetable production.

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Section: Discussionsupporting

confidence: 57%

The Dwarf Saltwort (Salicornia bigeloviiTorr.): Evaluation of Breeding Populations

Jaradat¹,

Bücking

Merah³

et al. 2012

ISRN Agronomy

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“…The correlation between gene diversity and the number of alleles at all polymorphic loci is high (r= 0.835) and greater than r = 0.741 reported earlier in barley (Salem et al, 2010), r = 0.533 in salicornia (Xu et al, 2011). Results at two aforementioned loci agree with the suggestion of Salem et al (2010) and Xu et al (2011) but our cumulative data at all loci do not support these suggestions. However, large number of alleles with low major allele frequency at a locus produced high gene diversity and PIC values, and vice versa.…”

Section: Genetic Diversity Within and Among Populationscontrasting

confidence: 78%

“…A positive significant association between number of alleles and gene diversity has been previously reported, and the use of number of alleles to evaluate the genetic diversity has been suggested (Salem et al, 2010). The correlation between gene diversity and the number of alleles at all polymorphic loci is high (r= 0.835) and greater than r = 0.741 reported earlier in barley (Salem et al, 2010), r = 0.533 in salicornia (Xu et al, 2011). Results at two aforementioned loci agree with the suggestion of Salem et al (2010) and Xu et al (2011) but our cumulative data at all loci do not support these suggestions.…”

Section: Genetic Diversity Within and Among Populationsmentioning

confidence: 74%

GENETIC VARIANCE, POPULATION STRUCTURE AND GENE FLOW AMONG Triticum aestivum FOR RUST RESISTANCE

Khan¹

2017

PAKJAS

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Bread wheat (Triticum aestivum L.) is among the top three cereal crops and major staple food as it accounts for 20% calories, consumed by humans in the world. The vulnerability of wheat to diseases is a risk to the global food security. Three types of rusts, caused by fungal strains, are the major yield limiting factors to reduce overall wheat production. In the present study, molecular markers were employed for genetic diversity analysis of wheat accessions regarding the presence of various rust resistance genes. Three hundred and sixty wheat accessions were screened against stem rust (Sr), leaf rust (Lr) and yellow rust (Yr) resistance genes. Eleven polymorphic SSRs detected 20 alleles, ranging from two to four alleles per locus. The allele frequency depicted that average number of alleles per locus was 2.55, 2.82, 2.82, 2.64 and 2.82 for population A, B, C, D and overall respectively. Gene diversity and heterozygosity were high for locus Sr25 but its major allele frequency was low. The PIC value was high at loci Lr34 and Yr18. Gene diversity, heterozygosity and PIC value were the lowest for locus Sr39 but its major allele frequency was the highest. Gene diversity increased with the number of alleles, that had a low major allele frequency at a particular locus. The Polymorphic loci effectively discriminated 360 accessions into six major clusters via principal component and population structure analyses. Significant deviation of FST from zero in six suggested populations for seven loci indicated population differentiation and limited gene flow among them. A reduced median network was established, which suggested that taxon G54 (MaxiPak-65), G-42 (Chanab-70), G-66 (SA-42) and G-75 (Yecora-70) are the progenitors, which are sharing rust genes to Pakistani wheat. These SSRs appeared effective for estimating genetic diversity, population structure and gene flow for rust resistance and for marker assisted wheat breeding.

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“…Sequence analysis showed that it had high homology to AP1s of other plants, thus, we can D.Z. Kong et al infer similar functions from its similar structure (Xu et al, 2011).…”

Section: Discussionmentioning

confidence: 97%

Cloning and expression of an APETALA1-like gene from Nelumbo nucifera

Kong¹,

Shen²,

Guo³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. The objective of this study was to clone the full-length cDNA of the APETALA1 (AP1) gene from lotus and analyze its sequence and expression pattern. The full-length cDNA sequence of the NnAP1 gene was amplified from the petals of Nelumbo nucifera 'Hongxia' using RT-PCR and rapid amplification of cDNA ends. Bioinformatic methods were used to analyze the sequence characteristics of the gene. Quantitative real-time PCR methods were used to investigate the expression pattern of NnAP1 in various organs and during different developmental stages. The cloned full-length NnAP1 cDNA (GenBank accession No. KF361315) was 902 bp, containing a 795-bp open reading frame encoding 264 amino acids with a relative molecular mass of 30,288.4 and an isoelectric point of 9.13. NnAP1 had a MADS-box domain and a K-box domain, which is typical of the SQUA/AP1 gene family. A protein sequence identity search showed that NnAP1 was 75-96% similar to other plant AP1s. Phylogenetic tree analysis indicated that NnAP1 was very closely related to AP1 of Glycine max, suggesting that they shared the same protein ancestor. Quantitative real-time PCR analysis showed that NnAP1 was expressed in various organs during different developmental stages; it had the highest expression in blooming flowers and had trace expression in the young vegetative and flower senescence stages. Our analysis suggests that NnAP1 plays an important role in controlling floral meristem identity and floral organ formation.

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Expressed sequence tag-simple sequence repeat-based molecular variance in two Salicornia (Amaranthaceae) populations

Cited by 11 publications

References 33 publications

The Dwarf Saltwort (Salicornia bigeloviiTorr.): Evaluation of Breeding Populations

The Dwarf Saltwort (Salicornia bigeloviiTorr.): Evaluation of Breeding Populations

GENETIC VARIANCE, POPULATION STRUCTURE AND GENE FLOW AMONG Triticum aestivum FOR RUST RESISTANCE

Cloning and expression of an APETALA1-like gene from Nelumbo nucifera

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