Study on relationship between pollen exine ornamentation pattern and germplasm evolution in flowering crabapple

Zhang, Wangxiang; Zhao, Mingming; Fan, Junjun; Zhou, Ting; Chen, Yong-Xia; Cao, Fuliang

doi:10.1038/srep39759

Cited by 22 publications

(22 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pollen ornamentation is one of the most significant characteristics that can be used to separate taxa (Pınar et al, 2009;Mačukanović-Jocić et al, 2017;Zhang et al, 2017). We observed that Scaligeria was striate, striate-rugulate, striate-reticulate, rugulate, and rugulate-perforate in polar view and striate-rugulate, striate-reticulate, rugulate, and verrucate in equatorial view in exine ornamentation.…”

Section: Discussionmentioning

confidence: 56%

Pollen morphology of Scaligeria DC. (Apiaceae) in Turkey

Baldemir¹,

Alan²,

Şahin³

et al. 2018

Turk J Bot

View full text Add to dashboard Cite

Oedibasis are closely related and form a strongly supported clade. However, Scaligeria is not grouped with these genera (Degtjareva et al., 2009, 2013; Hand et al., 2012). This result is in agreement with the treatment suggested by Kljuykov et al. (1976) and Pimenov (1983). Meanwhile, the taxonomic issues of Scaligeria still remain unresolved and studies continue. Scaligeria is widespread, with its presence ranging from Turkey, Cyprus, the southwestern Balkan Peninsula, and Greece eastwards to Syria, Lebanon, Israel, and Jordan with 25 species (Kyriakopoulos et al., 2014). The genus is represented in Turkey by seven species: the endemic S. capillifolia Post. in Adana located in the south of Turkey; S. lazica Boiss., endemic to the Eastern Black Sea region; and S. glaucescens (DC.

show abstract

Section: Discussionmentioning

confidence: 56%

Pollen morphology of Scaligeria DC. (Apiaceae) in Turkey

Baldemir¹,

Alan²,

Şahin³

et al. 2018

Turk J Bot

View full text Add to dashboard Cite

show abstract

“…Previous studies have used microsatellite markers to assess a broad range of genetic diversity resources in Malus germplasm collections [ 18 ]. Additionally, in morphological and biochemical diversity analyses from the parts of Malus species, phylogenetic relationships have been conducted, however, the number of them is limited [ 19 , 20 , 21 ]. However, the taxonomy of the Malus genus is complex and unclear, and in light of new genomic resources, in need of revision [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Complete Chloroplast Genome Sequence of Malus hupehensis: Genome Structure, Comparative Analysis, and Phylogenetic Relationships

Zhang

Rong

et al. 2018

Molecules

View full text Add to dashboard Cite

Malus hupehensis belongs to the Malus genus (Rosaceae) and is an indigenous wild crabapple of China. This species has received more and more attention, due to its important medicinal, and excellent ornamental and economical, values. In this study, the whole chloroplast (cp) genome of Malus hupehensis, using a Hiseq X Ten sequencing platform, is reported. The M. hupehensis cp genome is 160,065 bp in size, containing a large single copy region (LSC) of 88,166 bp and a small single copy region (SSC) of 19,193 bp, separated by a pair of inverted repeats (IRs) of 26,353 bp. It contains 112 genes, including 78 protein-coding genes (PCGs), 30 transfer RNA genes (tRNAs), and four ribosomal RNA genes (rRNAs). The overall nucleotide composition is 36.6% CG. A total of 96 simple sequence repeats (SSRs) were identified, most of them were found to be mononucleotide repeats composed of A/T. In addition, a total of 49 long repeats were identified, including 24 forward repeats, 21 palindromic repeats, and four reverse repeats. Comparisons of the IR boundaries of nine Malus complete chloroplast genomes presented slight variations at IR/SC boundaries regions. A phylogenetic analysis, based on 26 chloroplast genomes using the maximum likelihood (ML) method, indicates that M. hupehensis clustered closer ties with M. baccata, M. micromalus, and M. prunifolia than with M. tschonoskii. The availability of the complete chloroplast genome using genomics methods is reported here and provides reliable genetic information for future exploration on the taxonomy and phylogenetic evolution of the Malus and related species.

show abstract

“…Pollen grains of S. thaipingensis with higher apocolpium space is advanced though that of S. declinata is higher because S. declinata produce heteropolar pollen grains. Ornamentation pattern of pollen surface is important in the study of plant evolution and systematic taxonomy [33]. According to the concept of evolution of pollen grains stated by Yang et al [34], it can be found that the surface morphology of pollen of S. asoca having the reticulate type of exine is primitive among all.…”

Section: Discussionmentioning

confidence: 99%

Pollen Morphology of Indian Species of Saraca L. (Leguminosae)-A Threatened and Legendary Medicinal Tree

Sil¹,

Mallick²,

Pal³

et al. 2019

Phyton

View full text Add to dashboard Cite

The genus Saraca L. (Leguminosae) is a universal panacea in herbal medicine. The present study investigates the comparative pollen morphology of four species of Saraca viz. S. asoca (Roxb.) de Wilde, S. declinata (Jack) Miq., S. indica L., and S. thaipingensis Cantley ex Prain growing in India to reveal differences of their pollen structures to aid taxonomic and evolutionary values. The detailed morphology and surface structure of pollen grains were studied and described using light microscopy and scanning electron microscopy. The pollen grains of Saraca showed isopolar, para-syncolporate, tricolporate, with radially symmetric, prolate and prolate-spheroidal structure. The surface of pollen of S. indica is rugulate with large lirae but in S. declinata, the surface is micro-rugulate to vermiculate with relatively thin lirae and that of S. thaipingensis is indistinct as the psilate surface with a frequent protuberance and fewer perforations were observed along with the gemmae like structure. Exine ornamentation helped to separate S. indica and S. asoca. Exine thickness varies from 3-4 μm. Presence of protuberance and exine thickness varies among individuals of the species spread over different locations. Present work also provides a unique palynological identity and interrelationship of these four species based on cluster analysis taking 23 pollen characters with the help of statistical method like the plotting of ternary graph. Ternary plots also helped to calculate the level of plasticity of each character in the intra-and inter-specific level.

show abstract

Study on relationship between pollen exine ornamentation pattern and germplasm evolution in flowering crabapple

Cited by 22 publications

References 15 publications

Pollen morphology of Scaligeria DC. (Apiaceae) in Turkey

Pollen morphology of Scaligeria DC. (Apiaceae) in Turkey

Complete Chloroplast Genome Sequence of Malus hupehensis: Genome Structure, Comparative Analysis, and Phylogenetic Relationships

Pollen Morphology of Indian Species of Saraca L. (Leguminosae)-A Threatened and Legendary Medicinal Tree

Contact Info

Product

Resources

About