Karyological and cytogenetic studies of conifers from West Siberia and Far East

Муратова, Е. Н.; Седельникова, Т. С.; Karpyuk, T. V.; Vladimirova, O. S.; Pimenov, А. V.; Mikheeva, N. A.; Bazhina, E. V.; Kvitko, O. V.

doi:10.1134/s1995425508020148

Cited by 7 publications

(8 citation statements)

References 9 publications

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“…Species from the genus Picea are stable diploids and include 24 A chromosomes (2n=24) like most other taxons of the family Pinaceae (Khoshoo, 1961(Khoshoo, , 1962Mehra, 1968;Hizume, 1988;Rastogi & Ohri, 2020;Ohri, 2021). Our investigations contain more than 20 species of this genus (Medvedeva & Muratova, 1987;Muratova & Frolov, 1995;Muratova & Vladimirova, 2001a, 2021bMuratova et al, 2002Muratova et al, , 2004Muratova et al, , 2008Muratova et al, , 2019Muratova et al, , 2020Vladimirova et al, 2003Vladimirova et al, , 2007Sedel'nikova et al, 2004Sedel'nikova et al, , 2011Vladimirova & Muratova, 2005, 2006Karpyuk & Muratova, 2005;Karpyuk et al, 2009;Kvitko et al, 2009;Pimenov et al, 2012;Goryachkina et al, 2013;Tashev et al, 2014Tashev et al, , 2015. Some species have been studied in different parts of the range, in normal and extreme conditions: Near borders of the ranges of the species, in the swamps, in the mountains, and in the regions of anthropogenic influence.…”

Section: Distribution B Chromosomes In the Genus Piceamentioning

confidence: 87%

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B chromosomes in Conifers (Study Case of the Genus Picea A. Dietr.)

Muratova,

Sedel’nikova,

Pimenov

et al. 2023

SilvaWorld

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Data on B chromosomes in the genus Picea (Spruce) species are presented. Species of this genus are good objects for studying many problems on the role and origin of supernumerary chromosomes in conifers. Classical methods for studying chromosomes with staining of preparations with acetohematoxylin and the method of fluorescent in situ hybridization (FISH) were used. We report the B chromosomes occurrence in five Picea species and confirmed the data of different authors for seven species. At present, supernumerary chromosomes are found in 23 Picea species including the interspecies hybrid P. × fennica. B chromosomes of Picea species are smaller than A chromosomes; their size (4-6 µm) is 25-30% of the size of A chromosomes. The B chromosomes of spruce species are either meta- or submetacentric, which have been designated as B1 and B2 types respectively. The number of B chromosomes per cell in spruce species varies from one to six. It is generally agreed that B chromosomes are derived from A chromosomes through chromosome arrangements They differ from A chromosomes in sequence composition. The results allow us to consider that B chromosomes are of importance for organisms and possibly may play a role in their adaptation.

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Section: Distribution B Chromosomes In the Genus Piceamentioning

confidence: 87%

“…et C. A. Mey. (Muratova et al, 2002;Vladimirova et al, 2007;Muratova et al, 2008;Karpyuk et al, 2009;Sedel'nikova et al, 2011;Pimenov et al, 2012;Goryachkina al., 2013;Tashev et al, 2014Tashev et al, , 2015. Furthermore, we found B chromosomes in P. ajanensis (Lindl.…”

Section: Distribution B Chromosomes In the Genus Piceamentioning

confidence: 99%

B chromosomes in Conifers (Study Case of the Genus Picea A. Dietr.)

Muratova,

Sedel’nikova,

Pimenov

et al. 2023

SilvaWorld

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“…2A, 2B Goryachkina et al, 2013;Hizume, 1988;Hizume et al, 1988bHizume et al, , 1993aHizume et al, , 1994Hizume et al, ,1998aHizume et al, , 2002bLiu et al, 2006Liu et al, , 2007Lubaretz et al, 1996;Milyutin et al, 2004;Muratova, 1997;Muratova et al, 2007Muratova et al, ,2008Nkongolo and Klimaszewska, 1995;Simak, 1966;Zhang et al, 2010 6.…”

Section: Larix (14)mentioning

confidence: 99%

Karyotype evolution in conifers

Ohri

2021

Feddes Repertorium

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The present study describes the published karyotypes of 338 conifer taxa comprising of 302 species belonging to 59 genera of conifers. The somatic chromosome numbers range from 2n=18 in Phyllocladus (Podocarpaceae) to 2n=66 in Sequoia sempervirens (Cupressaceae). Polyploidy is rare as out of 512 conifer taxa known cytologically 2.80 per cent are polyploid and 2.20 per cent have both diploid and polyploid cytotypes. Various families show uniform somatic numbers such as Pinaceae (2n=24), Araucariaceae (2n=26), Cupressaceae (2n=22) except for some cases of polyploid taxa, and Podocarpaceae (2n=18-38) caused by centric fissions. In Pinaceae the genus Pinus has the most symmetrical karyotype and Larix has the maximum bimodality. The karyotype diversity in rest of the families has been discussed in the phylogenetic framework. This apparent uniformity of karyotypes is not reflected in diversity of fluorescent bands and rDNA loci. These additional markers have taxonomic relevance and also facilitate chromosome identification in a number of cases. This karyotype conservation is reflected in very weak interspecific crossing barriers with the hybrids showing normal meiosis, and also in the conservation of gene content and order.

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“…Picea glehnii 2n=24+0-2B Hizume et al 1988d24+0-5B Muratova 2000, Sedelnikova et al 2011 11. Muratova 1997a, 2000, Vladimirova et al 2003, Sedelnikova et al 201124+0-1B Liu& Li 1985, Hizume et al 1989b, Nkongolo 1999, Muratova 200524+1-3B Muratova et al 2008 12. Kruklis 1971, Pravdin et al 1976, Vladimirova et al 2003 24+0-4B Muratova 2005, Vladimirova 2005, Sedelnikova et al 2011 18.…”

Section: Frequencymentioning

confidence: 99%

“…Liu & Li 1985, Yang et al 199424+1B Shi & Wang 1994a 22. Muratova 1995, 2000, Muratova et al 2008, Sedelnikova et al 2011 23.…”

Section: Picea Wilsonii 24+1-2bmentioning

confidence: 99%

B-Chromosomes in Gymnosperms

Rastogi

Ohri

2019

Silvae Genetica

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B-chromosomes show a non-random distribution in different taxa of gymnosperms. They are generally smaller and show similar centromeric position as the normal complement and are heterochromatic in nature and may show DAPI or CMA banding. They are generally devoid of any gene content, do not pair at meiosis and show accumulation through female line. They show incremental effect on genome size and some adaptive value in particular ecological conditions.

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Karyological and cytogenetic studies of conifers from West Siberia and Far East

Cited by 7 publications

References 9 publications

B chromosomes in Conifers (Study Case of the Genus Picea A. Dietr.)

B chromosomes in Conifers (Study Case of the Genus Picea A. Dietr.)

Karyotype evolution in conifers

B-Chromosomes in Gymnosperms

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