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Expression of sprouting resistance in introgressive triticale-Triticum monococcum lines

100%

Sodkiewicz W., Tomczak M.

Genetica Polonica

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1994

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tom 35B

2

Morphological and molecular differentiation of the Croatian populations of Quercus pubescens Willd. [Fagaceae]

84%

Franjic J., Liber Z., Skvorc Z., Idzojtic M., Sostaric R., Stancic Z.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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nr 2

123-130

Taxonomy of the genus Quercus L. is very complicated and often controversial because of its great variability and intense gene flow among the related species. The purpose of this research was to determine morphological and molecular variation, relationships and taxonomic status of the Croatian populations of Quercus pubescens Willd. using morphological analysis of the leaves and RAPD-PCR technique. The results of the morphological and molecular analyses were very similar, both showing differentiation of the southern (Mediterranean) from the northern (Continental) pubescent oak populations. These two groups were clearly separated and the estimated gene flow among the populations that belong to different groups (Nm=1.38) is significantly less than among the populations that belong to the same group (Nm=3.70). The obtained results were compared to the available studies. This study confirms a high variability of the Q. pubescens populations, but differences were not so big to confirm the opinion of existence of several species in this area. The conclusion is that the southern Croatian populations could be pure Q. pubescens populations, while the peculiarities of the northern Croatian populations originate probably from the Q. petraea introgression.

3

Isoenzymatic variability in progeny of Pinus mugo Turra x Pinus sylvestris L. hybrids from Bor na Czerwonem, in experimental culture

84%

Bobowicz M. A., Danielewicz W., Pieczynska B., Wojnicka-Poltorak A., Prus-Glowacki W.

Acta Societatis Botanicorum Poloniae

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2000

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tom 69

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nr 2

4

Tetraploid triticale as a potential source of new variation for rye

84%

Lapinski B., Rafalski A.

Plant Breeding and Seed Science

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2003

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tom 48

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nr 2

5

Foreign DNA introgression caused heritable cytosine demethylation in ribosomal RNA genes of rice

84%

Liu B., Dong Y., Liu Z., He M., Wang Y.

Acta Physiologiae Plantarum

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2001

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tom 23

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nr 4

6

Interrelations among con-generic and co-occurring tree species: asymmetric hybridization and the high success of Quercus petraea (Matt.) Liebl. regeneration in mixed Q. petraea/Q. robur L. stands

67%

Boratynski A., Marcysiak K., Lewandowska A., Jasinska A., Iszkulo G.

Polish Journal of Ecology

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2010

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tom 58

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nr 2

Hybridisation and introgression are expected to be common in plant populations composed of various species of the same genera. These processes, however, frequently have one direction or are asymmetric, when one of hybridising species is a donor and other recipient of pollen. The asymmetric hybridisation may be also an important manner of migration by pollen. According to the theory of asymmetric hybridisation in mixed oak populations of European white oaks (Quercus robur and Q. petraea) the number of hybrid saplings should be higher under a canopy of Q. robur than under Q. petraea trees. The aim of this study was to determine, which of the two species in the mixed populations has a greater degree of success in regeneration and colonization, measured by the proportion and density of saplings and young individuals higher than 0.3 m. The taxonomic composition of saplings under the crown ranges of trees was analyzed on the basis of morphological characters of leaves in two distantly located mixed oak stands in Poland, in Jamy and Legnica Forests, where young generation to about 17–18 years old was observed under canopy of 125–140 years old mother trees. The first population is located about 100 km of Q. petraea geographic range and covers area of 6 km, the second about 500 km of Q. petraea range and covers more than 10 hectares. The density of 60 and 134 adult trees per hectare, were found in analysed populations, respectively. A significantly higher proportions of Q. petraea than Q. robur saplings were found in both compared stands. A hybrid saplings proportion were higher than hybrid adult trees. The hybrid saplings were observed more frequently under canopy of Q. robur only in the stand closer to the range of Q. petrea. Gene flow from Q. petraea to Q. robur by cross-pollination was found to be likely. The number of hybrid saplings found under crown projections of Q. petraea trees in both populations suggested also reverse gene flow, at least in the stand located close to the north-eastern limit of the Q. petraea range. A higher regeneration success of Q. petraea was observed in both stands suggesting expansion of this species.

7

Improving grain quality in winter wheat [Triticum aestivum L.] by introgressing alien HMV glutenin genes from tetraploid Triticum and diploid Aegilops species: A review

67%

Pilch J.

Plant Breeding and Seed Science

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2007

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tom 56

8

Aegilops-rye amphiploids and substitution rye used for introgression of genetic material into rye (Secale cereale L.)

59%

Apolinarska B., Wisniewska H., Wojciechowska B.

Journal of Applied Genetics

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2010

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tom 51

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nr 4

The valuable genes of Aegilops biuncialis, Ae. ovala, Ae. kotschyi, and Ae. variabilis were transferred to rye, by crossing Aegilops-rye amphiploids with tetraploid and diploid substitution rye. The C-banded karyotype of the BC₁ and BC₂ generations of amphiploids with 4x substitution rye and BC₁ with 2x substitution rye showed great variation in chromosome number and composition. In the BC₁ generation of amphiploids with 4x and 2x substitution rye, seed set success rate and germination rate varied depending on origin. However, plant sterility in all cross combinations of amphiploids with 4x and 2x substitution rye resulted in their elimination from further experiments in the BC₃ and BC₂ generations, respectively. In backcrosses of 4x substitution rye with amphiploids Ae. variabilis x rye 4x, fertile 4x rye plants containing Aegilops chromatin were produced in the BC₂ generation.

9

Introgression of distant mitochondria into the genome of Gyrodactylus salaris: Nuclear and mitochondrial markers are necessary to identify parasite strains

59%

Zietara M. S., Rokicka M., Stojanovski S., Lumme J.

Acta Parasitologica

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2010

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tom 55

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nr 1

20-28

Novel combinations of mitochondrial DNA (CO1) and internal transcribed spacers of nuclear ribosomal DNA (ITS) were detected among Gyrodactylus parasites on brown trout (Salmo trutta L.), rainbow trout (Oncorhynchus mykiss (Walbaum)), and Ohrid trout (Salmo letnica (Karaman)) from salmonid farms in Poland and Macedonia. Some clones differed from standard ITS only by ≤ 4 nucleotides, but they belonged to a mtDNA clade that differed from the Northern European lineages of G. salaris by d MCL = 0.266 ± 0.108 (maximum composite likelihood distance). The divergence of d MCL = 0.013 ± 0.005 within the alien mtDNA clade suggested introgression from an unknown maternal ancestor into the G. salaris Malmberg genome 137 to 57 kyr ago (or, less probably, repeated introgression). A comparable modern hybrid was detected based on permanently heterozygous ITS (28 bp/1264 = 2.2%) in a clone that is widespread throughout Finnish rainbow trout farms. This was a F1 hybrid of maternal G. pomeraniae Kuusela, Ziętara et Lumme (on roach, Rutilus rutilus (L.)) and G. lavareti Malmberg (on whitefish, Coregonus lavaretus (L.)). The mtDNA of the parental species differed by d MCL = 0.290 ± 0.130. The observations emphasize that both nuclear and maternally-inherited DNA markers are necessary to characterize sexually-produced lineages or clones of Gyrodactylus. The hybridization events demonstrated predict incongruence of mitochondrial vs. nuclear gene trees, i.e., reticulate evolution in species trees.

10

Wykorzystanie genów z gatunków diploidalnych, tetraploidalnych i heksaploidalnych pszenicy Tricticum L. w odmianach pszenicy heksaploidalnej Triticum aestivum L

59%

Pilch J.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

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2011

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nr 262

Ograniczanie wyników

Expression of sprouting resistance in introgressive triticale-Triticum monococcum lines

Morphological and molecular differentiation of the Croatian populations of Quercus pubescens Willd. [Fagaceae]

Isoenzymatic variability in progeny of Pinus mugo Turra x Pinus sylvestris L. hybrids from Bor na Czerwonem, in experimental culture

Tetraploid triticale as a potential source of new variation for rye

Foreign DNA introgression caused heritable cytosine demethylation in ribosomal RNA genes of rice

Interrelations among con-generic and co-occurring tree species: asymmetric hybridization and the high success of Quercus petraea (Matt.) Liebl. regeneration in mixed Q. petraea/Q. robur L. stands

Improving grain quality in winter wheat [Triticum aestivum L.] by introgressing alien HMV glutenin genes from tetraploid Triticum and diploid Aegilops species: A review

Aegilops-rye amphiploids and substitution rye used for introgression of genetic material into rye (Secale cereale L.)

Introgression of distant mitochondria into the genome of Gyrodactylus salaris: Nuclear and mitochondrial markers are necessary to identify parasite strains

Wykorzystanie genów z gatunków diploidalnych, tetraploidalnych i heksaploidalnych pszenicy Tricticum L. w odmianach pszenicy heksaploidalnej Triticum aestivum L