Chromosome banding in &lt;i&gt;Picea&lt;/i&gt; IV. Comparative karyotype analysis of fluorescent band patterns in 25 taxa

Hizume, Masahiro

doi:10.3199/iscb.12.17

Cited by 3 publications

(9 citation statements)

References 44 publications

(70 reference statements)

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“…In 25 species of Picea studied, many CMA bands were observed both at interstitial and centromeric positions while DAPI bands were absent in some species (Table 3), and interestingly the CMA band pattern shows broad congruence with the geographical distribution (Hizume, 2017). Large number of CMA bands, 5-14 interstitial and 4-8 centromeric, characterize American and Arctic -Eurasian species while East-Asian species have less number of interstitial (4-6) and centromeric (0-5) bands (Hizume, 2017). A distinct feature of Picea karyotypes is the presence of two closely occurring CMA bands on one of the arms in a pair (Hizume, 2017).…”

Section: Chromosome Band Ingmentioning

confidence: 85%

“…al., 2000;Cesca and Peruzzi, 2002;Silva-Mann, 2002;Bogunic et al, 2006Bogunic et al, , 2011aBogunic et al, , 2011bCai et al, 2006;Islam-Faridi et al, 2003Nunes et al, 2009;Liu et al , 2003;Mehes-Smith et al, 2011;Muratova et al, 2008;Pavia et al, 2014;Shibata et al, 2016 3. Brown and Carlson, 1997;Burley, 1965;Hizume, 1988, 2017, Hizume and Kukuzawa, 1995Hizume et al, 1989aHizume et al, , 1991Hizume et al, , 1999bKuo et al, 1972;Liu and Li,1985;Mehra, 1988;Moir, 1972;Nkongolo, 1996Nkongolo, ,1999…”

Section: Ratio-largest/ Smallestmentioning

confidence: 99%

“…Large number of CMA bands, 5-14 interstitial and 4-8 centromeric, characterize American and Arctic -Eurasian species while East-Asian species have less number of interstitial (4-6) and centromeric (0-5) bands (Hizume, 2017). A distinct feature of Picea karyotypes is the presence of two closely occurring CMA bands on one of the arms in a pair (Hizume, 2017).…”

Section: Chromosome Band Ingmentioning

confidence: 99%

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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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Section: Chromosome Band Ingmentioning

confidence: 85%

Section: Ratio-largest/ Smallestmentioning

confidence: 99%

Section: Chromosome Band Ingmentioning

confidence: 99%

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Karyotype evolution in conifers

Ohri

2021

Feddes Repertorium

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“…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. Literature data are used for karyological characteristics of the other spruce species (Kruklis, 1971;Pravdin et al, 1976;Liu & Li, 1985;Hizume, 1988Hizume, , 2017Hizume et al, 1988Hizume et al, , 1989Broka, 1990;Shi & Wang 1994;Farukshina et al, 1997;Li et al, 2001;Shibata & Hizume, 2008;and others). According to the classification of morphological types of chromosomes Picea species contain eight pairs long of metacentric chromosomes and four pairs are short meta-or submetacentric ones.…”

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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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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“…Moir & Fox 1972, Brown & Carlson 1997, Hizume 201724+0-3B Moir and Fox 197624+0-5B Moir and Fox 1977, Kean et al 1982 21.…”

Section: Picea Sitchensis 24+0-2bmentioning

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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Chromosome banding in <i>Picea</i> IV. Comparative karyotype analysis of fluorescent band patterns in 25 taxa

Cited by 3 publications

References 44 publications

Karyotype evolution in conifers

Karyotype evolution in conifers

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

B-Chromosomes in Gymnosperms

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