A Petunia hybrida chloroplast DNA region, close to one of the inverted repeats, shows sequence homology with the Euglena gracilis chloroplast DNA region that carries the putative replication origin

Haas, Jan M. de; Boot, Kees J. M.; Haring, Michel A.; Kool, A. J.; Nijkamp, H. J. J.

doi:10.1007/bf00330515

Cited by 38 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1, its In summary, the positioning of the ori-specific sequences in ctDNA may have a general characteristic of proximity to the rRNA genes but a flexible positioning relative to them. Also, those reports (3,4,16,21) on the base composition of the chloroplast-specific ori regions have, in general, found them to be A+T rich, and our data from a higher plant are clearly in agreement with this property. It will be highly interesting to determine and explore the precise base sequences of the two pea ctDNA D-loop regions mapped here and then to compare the various properties of a higher plant ctDNA replicative region with the properties of its counterpart in the algal replicative region.…”

Section: Discussionsupporting

confidence: 81%

Localization of replication origins in pea chloroplast DNA.

Meeker¹,

Nielsen²,

Tewari³

1988

Mol. Cell. Biol.

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 81%

Localization of replication origins in pea chloroplast DNA.

Meeker¹,

Nielsen²,

Tewari³

1988

Mol. Cell. Biol.

View full text Add to dashboard Cite

show abstract

“…In an attempt to map the replication origin, identified regions of the Chlamydomonas chloroplast chromosome that promote autonomous replication in yeast. Comparable work was undertaken by Schlunegger and coworkers (10,11) with Euglena and by de Haas et al (12) with petunia.…”

Section: Introductionmentioning

confidence: 97%

Nucleotide sequence of a preferred maize chloroplast genome template for in vitro DNA synthesis.

Gold¹,

Carrillo²,

Tewari³

et al. 1987

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

show abstract

“…In addition, cpDNA and mtDNA have been analyzed with RFLPs . For cpDNA, the pPCY64 probe (De Haas et al ., 1986) containing the Petunia ARS-C sequence is useful since it recognizes an RFLP between L. esculentum and related species such as L. hirsutum (Derks et al ., 1992) and L. peruvianum (Derks et al ., 1991) after digestion with Hinfl . For the analysis of mtDNA many probe/enzyme combinations are available (Guri et al ., 1988 ;Bonnema et al ., 1991Derks et al ., 1991 ;Wachocki et al ., 1991 ;Wolters et al ., 1993b) .…”

Section: The Analysis Of Somatic Hybrids and Cybridsmentioning

confidence: 99%

Somatic hybridization as a tool for tomato breeding

et al. 1994

View full text Add to dashboard Cite

Protoplast fusion can be used to produce somatic hybrids of species that cannot be obtained by sexual hybridization . The possibility to introgress genes from Solanum species into the cultivated tomato species Lycopersicon esculentum, and to obtain novel cytoplasm-nucleus combinations (cybrids) was considered as an important strategy to extend the genetic variation available for tomato breeding . Somatic hybrids between L. esculentum and other Lycopersicon species, as well as between L. esculentum and Solanum or Nicotiana species, have been produced . Specific mutants, genotypes with antibiotic resistances, and metabolic inhibition by iodoacetate or iodoacetamide and irradiation were used for the selection of hybrids . In addition, the improvement of protoplast culture techniques and the use of the favourable tissue culture traits derived from species such as L. peruvianum, which have been introduced into tomato by classical breeding, allowed the efficient recovery of somatic hybrids . However, the occurrence of somatic incongruity in fusion combinations of L. esculentum and Solanum and even more in L. esculentum and Nicotiana, did not allow the production of true cybrids and/or fertile hybrids, indicating the importance of both cytoplasm-nucleus and nucleus-nucleus interactions in somatic incongruity . Another problem with fusions between distantly related species is the strongly reduced fertility of the hybrids and the very limited homoeologous recombination between chromosomes of the parental species . Partial genome transfer from donor to recipient through microprotoplast (+) protoplast fusion, and the production of monosomic or disomic chromosome addition lines, might overcome some of these problems. In symmetric somatic hybrids between L. esculentum and S. tuberosum the occurrence of limited somatic and meiotic recombination was demonstrated . Fertile progeny plants could be obtained, though at a low frequency, when embryo rescue was performed on a large scale after backcrossing hexaploid somatic tomato (+) potato hybrids with a tetraploid potato genotype . The potential value of genomic in situ hybridization (GISH) and RFLPs for the analysis of the genome/chromosome composition of the hybrids has been demonstrated for intergeneric somatic hybrids between Lycopersicon and Solanum.

show abstract

A Petunia hybrida chloroplast DNA region, close to one of the inverted repeats, shows sequence homology with the Euglena gracilis chloroplast DNA region that carries the putative replication origin

Cited by 38 publications

References 31 publications

Localization of replication origins in pea chloroplast DNA.

Localization of replication origins in pea chloroplast DNA.

Nucleotide sequence of a preferred maize chloroplast genome template for in vitro DNA synthesis.

Somatic hybridization as a tool for tomato breeding

Contact Info

Product

Resources

About