Abstract
Thinopyrum bessarabicum (T. Săvulescu & T. Rayss, 1923) A. Löve, 1980 is diploid (2n=2x=14, JJ or E b E b ), perennial self-fertilizing rhizomatous maritime beach grass, which is phylogenetically close to another diploid wheatgrass species, Agropyron elongatum (N. Host, 1797) P. de Beauvois, 1812. The detailed karyotype of Th. bessarabicum was constructed based on FISH with six DNA probes representing 5S and 45S rRNA gene families and four tandem repeats. We found that the combination of pAesp_SAT86 (= pTa-713) probe with pSc119.2 or pAs1/ pTa-535 allows the precise identification of all J-genome chromosomes. Comparison of our data with the results of other authors showed that karyotypically Th. bessarabicum is distinct from A. elongatum . On the other hand, differences between the J-genome chromosomes of Th. bessarabicum and the chromosomes of hexaploid Th. intermedium (N. Host, 1797) M. Barkworth & D.R. Dewey, 1985 and decaploid Th. ponticum (J. Podpěra, 1902) Z.–W. Liu & R.–C. Wang, 1993 in the distribution of rDNA loci and hybridization patterns of pSc119.2 and pAs1 probes could be an indicative of (1) this diploid species was probably not involved in the origin of these polyploids or (2) it could has contributed the J-genome to Th. intermedium and Th. ponticum , but it was substantially modified over the course of speciation
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
The combination of pAesp_SAT86 (= pTa-713) probe with pSc119.2 or pAs1/ pTa-535 allows precise identification of all J-genome chromosomes.
- Taxon
- Thinopyrum bessarabicumThinopyrum bessarabicumt0
- Treatment
- pAesp_SAT86 (= pTa-713) probee1
- Outcome
- precise identification of all J-genome chromosomese1
Verbatim
t0“Thinopyrum bessarabicum”
e1“the combination of pAesp_SAT86 (= pTa-713) probe with pSc119.2 or pAs1/ pTa-535 allows the precise identification of all J-genome chromosomes”
Claim · model-written summary
The detailed karyotype of Thinopyrum bessarabicum was constructed by FISH with six DNA probes.
Verbatim
t0“Thinopyrum bessarabicum”
e0“The detailed karyotype of Th. bessarabicum was constructed based on FISH with six DNA probes representing 5S and 45S rRNA gene families and four tandem repeats”
Claim · model-written summary
Thinopyrum bessarabicum is karyotypically distinct from Agropyron elongatum.
Verbatim
t0“Thinopyrum bessarabicum”
e2“Comparison of our data with the results of other authors showed that karyotypically Th. bessarabicum is distinct from A. elongatum”
Claim · model-written summary
Differences in rDNA loci and hybridization patterns of pSc119.2 and pAs1 probes may indicate that the diploid species was not involved in the origin of polyploid Thinopyrum species or was modified during speciation.
- Taxon
- Thinopyrum bessarabicumThinopyrum bessarabicumt0
- Outcome
- distribution of rDNA loci and hybridization patterns of pSc119.2 and pAs1 probese3
Verbatim
t0“Thinopyrum bessarabicum”
e3“in the distribution of rDNA loci and hybridization patterns of pSc119.2 and pAs1 probes could be an indicative of”