scholarly journals RAPD, RFLP and SSLP analyses of phylogenetic relationships between cultivated and wild species of rice

2001 ◽  
Vol 76 (2) ◽  
pp. 71-79 ◽  
Author(s):  
Nonnatus S. Bautista ◽  
Renando Solis ◽  
Osamu Kamijima ◽  
Takashige Ishii
Keyword(s):  
Wild Species ◽  
Phylogenetic Relationships

Phylogenetic relationships between cultivated and wild species of the genusBeta revealed by DNA ?fingerprinting?

1993 ◽  
Vol 86 (4) ◽  
pp. 449-457 ◽  
Author(s):  
C. Jung ◽  
K. Pillen ◽  
L. Frese ◽  
S. F�hr ◽  
A. E. Melchinger
Keyword(s):  
Dna Fingerprinting ◽  
Wild Species ◽  
Phylogenetic Relationships

Biogeography of the Anthropocene

2015 ◽  
Vol 40 (1) ◽  
pp. 161-174 ◽  
Author(s):  
Kenneth R. Young
Keyword(s):  
Molecular Biology ◽  
Artificial Selection ◽  
Wild Species ◽  
Phylogenetic Relationships ◽  
Taste Preferences ◽  
Whole Genome ◽  
Fruit And Vegetable ◽  
Historical Events ◽  
The Past ◽  
Genome Analyses

The past and present impacts of humans on the biosphere have altered many ecological and evolutionary processes. One of the most dramatic set of examples comes from domestication, which has transformed species, landscapes, and socioeconomic systems over the last 30 millennia. Recent research driven by advances in molecular biology and information sciences, and enriched by whole genome analyses of the main plant and animal domesticates, is now able to elucidate obscure phylogenetic relationships complicated by past hybridization and chromosome rearrangements. These methods also reveal information on the historical events that converted wild species into useful, and in some cases, codependent taxa. A further set of human-domesticate interactions produces the great diversification behind the origin and maintenance of numerous crop landraces, fruit and vegetable variants, and animal breeds. Fashion, taste preferences, and familial dynamics are some of the additional factors involved beyond usefulness that collectively result in human-caused artificial selection. Domestication is an important dimension to consider in understanding the biogeographical implications of the Anthropocene.

Evolutionary trends of microsatellites during the speciation process and phylogenetic relationships within the genus Secale

Genome ◽  
2011 ◽  
Vol 54 (4) ◽  
pp. 316-326 ◽  
Author(s):  
T.H. Ren ◽  
F. Chen ◽  
Y.T. Zou ◽  
Y.H. Jia ◽  
H.Q. Zhang ◽  
...  
Keyword(s):  
Wild Species ◽  
Phylogenetic Relationships ◽  
Common Ancestor ◽  
Inter Simple Sequence Repeat ◽  
Issr Markers ◽  
Wild Form ◽  
Evolutionary Trend ◽  
Speciation Process ◽  
Geographic Separation ◽  
Simple Sequence

Eleven weedy or wild species or subspecies of the genus Secale L. were compared with a set of cultivated rye accessions, based on inter-simple sequence repeat (ISSR) markers to analyze their phylogenetic relationships. A total of 846 bands were amplified from reactions using 12 screening primers, including 79 loci with a mean of 10.1 alleles per locus. The number of amplified bands for each primer ranged from 12 to 134, with a mean of 70.5 amplified bands per primer. The presence and distribution of amplified bands in different accessions demonstrate that a rapid evolutionary trend of microsatellite repeats occurred during the speciation process from the perennial wild form to annual cultivated rye. In addition, variation, amplification, and deletion of microsatellites in genomes revealed phylogenetic relationships in the genus Secale. Analysis of the presence, number, and distribution of amplified bands in genomes, as well as the comparison with genetic similarity (GS) indices based on ISSR, indicate that Secale strictum subsp. africanum (Stapf) Hammer, Secale strictum anatolicum (Boiss.) Hammer, Secale sylvestre Host, and Secale strictum subsp. strictum (C. Presl) Hammer emerged in succession from a common ancestor of Secale following geographic separation and genetic differentiation. The annual weedy rye evolved from S. strictum subsp. strictum, which was domesticated as present-day cultivated rye. Data from ISSR analyses separated all investigated accessions of the genus Secale into three distinct groups. These results support the division of the genus Secale into three species: the annual wild species S. sylvestre; the perennial wild species S. strictum, including several differential subspecies forms such as strictum, africanum, and anatolicum; and S. cereale, including cultivated and weedy rye as subspecies forms.

scholarly journals 336 PHYLOGENETIC RELATIONSHIPS OF CELERY AND ITS WILD RELATIVES BASED ON RESTRICTION FRAGMENT LENGTH POLYMORPHISMS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 478f-478
Author(s):  
Gordon M. Huestis ◽  
Carlos F. Quiros
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Tree ◽  
Chloroplast Dna ◽  
Southern Hemisphere ◽  
Fragment Length ◽  
Wild Species ◽  
Phylogenetic Relationships ◽  
Wild Relatives ◽  
Length Polymorphisms ◽  
Restriction Fragment Length

Phylogenetic relationships of seven Apium species, including three horticultural types of A. graveolens, were assayed for RFLPs using cDNA, chloroplast DNA, and rDNA probes. Most of the probes had been previously mapped in celery. The three horticultural types of A. graveolens were found to be less polymorphic than the wild species and in phylogenetic analysis they clustered together. The wild species formed a cluster on the dendrogram corresponding to their origin in the southern hemisphere. A. nodiflorum, a wild species from Ethiopia formed a branch on the phylogenetic tree apart from all other species. This, along with morphological considerations, suggests that A. nodiflorum should be reclassified outside the genus Apium.

RAPD and ISSR fingerprints as useful genetic markers for analysis of genetic diversity, varietal identification, and phylogenetic relationships in peanut (Arachis hypogaea) cultivars and wild species

Genome ◽  
2001 ◽  
Vol 44 (5) ◽  
pp. 763-772 ◽  
Author(s):  
S N Raina ◽  
V Rani ◽  
T Kojima ◽  
Y Ogihara ◽  
K P Singh ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Markers ◽  
Arachis Hypogaea ◽  
Wild Species ◽  
Phylogenetic Relationships ◽  
Varietal Identification ◽  
Ssr Primers ◽  
Cultivated Peanut ◽  
Wild Progenitors ◽  
Botanical Varieties

Twenty-one random and 29 SSR primers were used to assess genetic variation and interrelationships among subspecies and botanical varieties of cultivated peanut, Arachis hypogaea (2n = 4x = 40), and phylogenetic relationships among cultivated peanut and wild species of the genus Arachis. In contrast with the previous generalization that peanut accessions lack genetic variation, both random and SSR primers revealed 42.7 and 54.4% polymorphism, respectively, among 220 and 124 genetic loci amplified from 13 accessions. Moreover, the dendrograms based on RAPD, ISSR, and RAPD + ISSR data precisely organized the five botanical varieties of the two subspecies into five clusters. One SSR primer was identified that could distinguish all the accessions analysed within a variety. Although the polymorphic index content varied from 0.1 to 0.5 for both ISSR and RAPD markers, primer index values were substantially higher for RAPD primers (0.35–4.65) than for SSR primers (0.35–1.73). It was possible to identify accessions, particularly those of divergent origins, by RAPD and (or) ISSR fingerprints. Based on these results, marker-based genetic improvement in A. hypogaea appears possible. None of the 486 RAPD and 330 ISSR amplification products were found to be commonly shared among 13 species of section Arachis and one species each of sections Heteranthae, Rhizomatosae, and Procumbentes. Dendrograms constructed from RAPD, ISSR, and RAPD + ISSR data showed overall similar topologies. They could be resolved into four groups corresponding to the species grouped in four taxonomic sections. The present results strongly support the view that Arachis monticola (2n = 4x = 40) and A. hypogaea are very closely related, and indicate that A. villosa and A. ipaensis are the diploid wild progenitors of these tetraploid species.Key words: Arachis hypogaea, genetic markers, varietal identification, DNA polymorphism, Arachis species.

scholarly journals The use of molecular cytogenetic methods in the investigation of distant potato hybrids

2020 ◽  
Vol 3 (2) ◽  
pp. 30-38
Author(s):  
Т.  О. Makarova
Keyword(s):  
Comparative Analysis ◽  
Wild Species ◽  
Phylogenetic Relationships ◽  
Interspecific Hybrids ◽  
Molecular Cytogenetic ◽  
Potato Species ◽  
Interspecies Hybridization ◽  
Molecular Cytogenetic Techniques ◽  
Cytogenetic Methods

This paper reviews the results of studies of interspecies hybridization, polyploidization, as well as phylogenetic relationships of Solanum species and members of closely related taxa by such molecular cytogenetic techniques as genomic (GISH) and fluorescent (FISH) DNA-DNA in situ hybridization. The latter was used to determine the genomic composition and origin of wild species of the Petota section, while the FISH technique was used for detecting intergenomic collinearity. The combination of these two types of research made possible a comparative analysis of karyotypes and genomes, thus allowing a better understanding of the meiotic interchromosomal interactions in hybrids. This review primarily focuses on the studies of wild allopolyploid potato species and artificially created intergeneric and interspecific hybrids of the genus Solanum and their offspring.

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