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1. New record of chromosome count and B- chromosome in Tinantia erecta (Jacq.) Fenzl collected from different localities of Mussoorie, Uttarakhand (India)

Author:
Arneet Grewal; Poonam Rani
Source:
Nucleus 2022 v.65 no.1 pp. 73-79
ISSN:
0029-568X
Subject:
chromosome number,   etc   ; B chromosomes; chromatin; gametophytes; males; meiosis; stickiness; India;     Show all 8 Subjects
Abstract:
... Plants of Tinantia erecta (Jacq.) Fenzl were collected from four localities of Mussoorie, Uttarakhand (India) to investigate their cytological status and course of male meiosis. Three populations revealed the presence of n = 32 and one population showed the presence of n = 34 as the gametophytic chromosome count which is being reported for the first time from India. Presence of B- chromosomes (n = ...
DOI:
10.1007/s13237-021-00359-y

2. Aneusomaty and Chromosomal Chimeras in Male Track of Coccinia grandis (L.) Voigt

Author:
Priya Sharma; Namrata Sharma
Source:
National Academy science letters 2022 v.45 no.2 pp. 191-194
ISSN:
0250-541X
Subject:
chromosome number,   etc   ; Coccinia grandis; chromosomes; males; meiosis; mitosis; pollen viability; India;     Show all 8 Subjects
Abstract:
... In our present study, three wild ♂ accessions of Coccinia grandis from Jammu, Samba and Kathua of Jammu province (J&K, India) have been worked out for cytological details. To determine the chromosome behavior, both meiotic and mitotic details were worked out for plants of all three locations. While Samba and Kathua accessions had somatic cells with uniform chromosome count of 2n = 24, few plants o ...
DOI:
10.1007/s40009-021-01089-0

3. Genome Size and Chromosome Number Evaluation of Astragalus L. sect. Hymenostegis Bunge (Fabaceae)

Author:
Ali Bagheri; Azadeh Akhavan Roofigar; Zahra Nemati; Frank R. Blattner
Source:
Plants 2022 v.11 no.3 pp. -
ISSN:
2223-7747
Subject:
chromosome number,   etc   ; Astragalus; Oxytropis; chromosomes; cytotypes; diploidy; genome; hexaploidy; phylogeny; silica gel; tetraploidy;     Show all 11 Subjects
Abstract:
... Astragalus section Hymenostegis is one of the important characteristic elements of thorn-cushion formations in the Irano-Turanian floristic region. In this paper, we examined the chromosome number of 17 species (15 new reports) and provide estimates of genome size for 62 individuals belonging to 38 taxa of A. sect. Hymenostegis, some species outside this section, plus two Oxytropis species. Based ...
DOI:
10.3390/plants11030435

4. Chromosome‐specific painting unveils chromosomal fusions and distinct allopolyploid species in the Saccharum complex

Author:
Fan Yu; Xinwang Zhao; Jin Chai; Xueer Ding; Xueting Li; Yongji Huang; Xianhong Wang; Jiayun Wu; Muqing Zhang; Qinghui Yang; Zuhu Deng; Jiming Jiang
Source:
The new phytologist 2022 v.233 no.4 pp. 1953-1965
ISSN:
0028-646X
Subject:
chromosome number,   etc   ; Miscanthus; Saccharum officinarum; allopolyploidy; chromosome aberrations; chromosomes; cytotypes; fluorescence; karyotyping; phylogeny; sugarcane;     Show all 11 Subjects
Abstract:
... Karyotypes provide key cytogenetic information on the phylogenetic relationships and evolutionary origins in related eukaryotic species. Despite our knowledge of the chromosome numbers of sugarcane and its wild relatives, the chromosome composition and evolution among the species in the Saccharum complex have been elusive owing to the complex polyploidy and the large numbers of chromosomes of thes ...
DOI:
10.1111/nph.17905

5. Asparagus ploidy distribution related to climates adaptation in Iran

Author:
Seyyed Javad Mousavizadeh; Juan Gil; Roberto Moreno; Kambiz Mashayekhi
Source:
Environment, development and sustainability 2022 v.24 no.4 pp. 5582-5593
ISSN:
1387-585X
Subject:
chromosome number,   etc   ; altitude; climate; diploidy; geographical distribution; humidity; multivariate analysis; polyploidy; salinity; soil salinity; Iran;     Show all 11 Subjects
Abstract:
... Asparagus basic chromosome number is 2n = 2x = 20. The high rate of polyploidy in wild asparagus has been found in natural surroundings of Iran. It is not entirely clear how asparagus polyploidy occurs in relation to ecological areas. To investigate, climatic parameters were used to determine the effect of climate on the geographical distribution of diploid and polyploid asparagus. Wild asparagus ...
DOI:
10.1007/s10668-021-01672-x

6. Piper DNA virus 1 and 2 are endogenous pararetroviruses integrated into chromosomes of black pepper (Piper nigrum L)

Author:
A. I. Bhat; A. Mohandas; B. Sreenayana; T. S. Archana; K. Jasna
Source:
Virusdisease 2022 v.33 no.1 pp. 114-118
ISSN:
2347-3584
Subject:
chromosome number,   etc   ; DNA viruses; Piper nigrum; abiotic stress; black pepper; genome; nucleotide sequences; polymerase chain reaction;     Show all 8 Subjects
Abstract:
... A previous study named 7178 and 892 bp contigs obtained through high-throughput sequencing (HTS) of black pepper as Piper DNA virus 1 (PDV-1) and PDV-2 respectively. In the present study, HTS results were confirmed through polymerase chain reaction and Sanger sequencing. The sequenced region of both PDV-1 and PDV-2 contained partial genomes with motifs characteristic of pararetroviruses. BLAST ana ...
DOI:
10.1007/s13337-021-00752-w

7. Micropropagation of Hibiscus moscheutos L. ‘Luna White’: effect of growth regulators and explants on nuclear DNA content and ploidy stability of regenerants

Author:
Hamidou F. Sakhanokho; Nurul Islam-Faridi; Ebrahiem M. Babiker; Barbara J. Smith
Source:
In vitro cellular & developmental biology 2022 v.58 no.1 pp. 61-69
ISSN:
1054-5476
Subject:
chromosome number,   etc   ; DNA; Hibiscus moscheutos; benzyladenine; cytokinins; flow cytometry; genetic stability; leaves; micropropagation; monoploidy; nuclear genome; shoot tips;     Show all 12 Subjects
Abstract:
... Hibiscus moscheutos L., also known as hardy hibiscus, is valued for its medicinal and ornamental attributes. It is usually propagated via seeds or cuttings. The purpose of this investigation was to develop a dependable micropropagation for H. moscheutos ‘Luna White’. To that end, the effect of four explant types (leaf, root, node, shoot tip) and two growth regulators 6-benzylaminopurine (BA) and m ...
Handle:
10113/7681105
DOI:
10.1007/s11627-021-10209-w

8. Re-Description, Lectotypification and Subgeneric Affiliation of the Philippine Endemic Tarenna arborea (Rubiaceae)

Author:
Ulrich Meve; Grecebio Jonathan D. Alejandro; Jayson G. Chavez
Source:
Annales botanici Fennici 2021 v.58 no.4-6 pp. 355-359
ISSN:
0003-3847
Subject:
chromosome number,   etc   ; Tarenna; lectotypes; redescriptions; trees;     Show all 5 Subjects
Abstract:
... Tarenna arborea, a Philippine endemic, is herein described and illustrated. This tree species is allocated to Tarenna subgenus Pacifica. The species name is lectotypified, and the chromosome number (2n = 22) is provided for the first time. ...
DOI:
10.5735/085.058.0421

9. Curcuma ruiliensis (Zingiberaceae), a new species from Yunnan, China

Author:
Juan Chen; Yu‐Shi Ye; Nian‐He Xia
Source:
Nordic journal of botany 2021 v.39 no.2 pp. -
ISSN:
0107-055X
Subject:
chromosome number,   etc   ; calyx; coma; new species; China;     Show all 5 Subjects
Abstract:
... A new species of Curcuma L. subg. Curcuma (Zingiberaceae) from China, C. ruiliensis N. H. Xia & Juan Chen, is described and illustrated. The chromosome number (2n = 84) is reported here. The new species is most similar to C. kwangsiensis S. G. Lee & C. F. Liang, but distinguished by pale yellow rhizomes, obovate tubers, longer ligule, lanceolate, obliquely spreading coma bracts, apex attenuate nev ...
DOI:
10.1111/njb.02910

10. Genetic diversity of twelve triploid bananas and plantains under section Eumusa as evident by chromosome morphology and SSR markers

Author:
Subrat Kumar Dehery; Anath Bandhu Das
Source:
Nucleus 2022 v.65 no.1 pp. 35-48
ISSN:
0029-568X
Subject:
chromosome number,   etc   ; Musa acuminata; asymmetry; bananas; chromosome morphology; cluster analysis; desserts; genetic heterogeneity; genetic similarity; interphase; karyotyping; microsatellite repeats; triploidy;     Show all 13 Subjects
Abstract:
... Cytological and simple sequence repeat (SSR) diversity of eight bananas and four plantains (Musa spp.) of the section Eumusa were analyzed. The chromosome characteristics and karyotype asymmetry reconfirmed triploid chromosome number of 2n = 3x = 33 in all varieties of Musa acuminata besides first reports in var. Desi Daskini Sagar and var. Shankara. Smaller chromosomes were observed in cooking va ...
DOI:
10.1007/s13237-021-00364-1

11. Nuclear DNA Content, Selected Morphological and Anatomical Traits of Narcissus Cultivars and Breeding Clones

Author:
Dariusz Sochacki; Małgorzata Podwyszyńska; Aleksandra Machlańska; Barbara Dyki
Source:
Agronomy 2022 v.12 no.3 pp. -
ISSN:
2073-4395
Subject:
chromosome number,   etc   ; Narcissus; agronomy; aneuploidy; chromosomes; cultivars; flow cytometry; karyotyping; leaf length; light microscopy; nuclear genome; parentage; perianth; tetraploidy; triploidy;     Show all 15 Subjects
Abstract:
... The genus Narcissus belongs to the family Amaryllidaceae. This genus has been the subject of numerous cytological and cytometric studies and have shown enormous variation in terms of genome size, ploidy level, and even the basic chromosome number. The basic chromosome numbers are 5 or 7, but 10, 11, and 12 have been recorded as well. Most narcissus cultivars are euploid tetraploids. There are also ...
DOI:
10.3390/agronomy12030648

12. Chromosome number is key to longevity of polyploid lineages

Author:
John E. Bowers; Andrew H. Paterson
Source:
The new phytologist 2021 v.231 no.1 pp. 19-28
ISSN:
0028-646X
Subject:
chromosome number,   etc   ; Angiospermae; extinction; gene flow; longevity; polyploidy;     Show all 6 Subjects
Abstract:
... Polyploidy is ubiquitous and often recursive in plant lineages, most frequently resulting in extinction but occasionally associated with great evolutionary success. However, instead of chromosome numbers exponentially increasing due to recurrent polyploidy, most angiosperm species have fewer than 14 chromosome pairs. Following genome duplication, diploidisation can render one copy of essential gen ...
DOI:
10.1111/nph.17361

13. Model adequacy tests for probabilistic models of chromosome‐number evolution

Author:
Anna Rice; Itay Mayrose
Source:
new phytologist 2021 v.229 no.6 pp. 3602-3613
ISSN:
0028-646X
Subject:
chromosome number,   etc   ; Angiospermae; chromosomes; eukaryotic cells; genome; phylogeny;     Show all 6 Subjects
Abstract:
... Chromosome number is a central feature of eukaryote genomes. Deciphering patterns of chromosome‐number change along a phylogeny is central to the inference of whole genome duplications and ancestral chromosome numbers. ChromEvol is a probabilistic inference tool that allows the evaluation of several models of chromosome‐number evolution and their fit to the data. However, fitting a model does not ...
DOI:
10.1111/nph.17106

14. Comparative chromosomal features and new karyological data in Salvia: B-chromosomes, polyploidy, dysploidy and symmetric karyotypes

Author:
Esra Martin; Ferhat Celep; Halil Erhan Eroğlu
Source:
Revista brasileira de botânica 2022 v.45 no.2 pp. 625-634
ISSN:
1806-9959
Subject:
chromosome number,   etc   ; B chromosomes; asymmetry; hexaploidy; karyotyping; tetraploidy;     Show all 6 Subjects
Abstract:
... The genus Salvia is characterized by such small chromosomes, which has so far restricted the cytogenetic studies. Therefore, karyomorphological aspects of the chromosome complement were rarely analyzed in the genus. The aim of this study was to report the interspecific relationships and new chromosomal data in Salvia. The chromosomal records of 25 taxa were herein provided, 8 of which were reporte ...
DOI:
10.1007/s40415-022-00796-2

15. The distinction between Sagina apetala and S. micropetala (Caryophyllaceae: Sagineae), their phylogenetic relationships, and a note on the coastal origin of some widespread ruderals

Author:
Markus S. Dillenberger; Joachim W. Kadereit
Source:
Willdenowia 2022 v.52 no.1 pp. 5-23
ISSN:
1868-6397
Subject:
chromosome number,   etc   ; Sagina; Willdenowia; color; fruits; phylogeny; Germany;     Show all 7 Subjects
Abstract:
... The distinction of the annual Sagina apetala and S. micropetala (= S. apetala subsp. erecta, S. filicaulis) is based mainly on the position of sepals in fruit and shape and colour of the sepals, but identification of the two species is difficult. A molecular phylogeny of material identified as S. apetala and S. micropetala as well as other species of the genus using two nuclear and two plastid mar ...
DOI:
10.3372/wi.52.52101

16. High quality haplotype‐resolved genome assemblies of Populus tomentosa Carr., a stabilized interspecific hybrid species widespread in Asia

Author:
Xinmin An; Kai Gao; Zhong Chen; Juan Li; Xiong Yang; Xiaoyu Yang; Jing Zhou; Ting Guo; Tianyun Zhao; Sai Huang; Deyu Miao; Wasif Ullah Khan; Pian Rao; Meixia Ye; Bingqi Lei; Weihua Liao; Jia Wang; Lexiang Ji; Ying Li; Bin Guo; Nada Siddig Mustafa; Shanwen Li; Quanzheng Yun; Stephen R. Keller; Jian‐Feng Mao; Ren‐Gang Zhang; Steven H. Strauss
Source:
Molecular ecology resources 2022 v.22 no.2 pp. 786-802
ISSN:
1755-098X
Subject:
chromosome number,   etc   ; Populus alba; Populus tomentosa; biotechnology; diploidy; ecological genetics; ecology; females; forestry; forests; genome assembly; hybrid species; males; urban horticulture; Asia;     Show all 15 Subjects
Abstract:
... Populus has a wide ecogeographical range spanning the Northern Hemisphere, and interspecific hybrids are common. Populus tomentosa Carr. is widely distributed and cultivated in the eastern region of Asia, where it plays multiple important roles in forestry, agriculture, conservation, and urban horticulture. Reference genomes are available for several Populus species, however, our goals were to pro ...
DOI:
10.1111/1755-0998.13507

17. Chromosome numbers for the Italian flora: 12

Author:
Giovanni Astuti; Fabrizio Bartolucci; Fabio Conti; Beatrice Cera; Antonio Giacò; Simone Orsenigo; Luca Sandroni; Lorenzo Peruzzi
Source:
Italian botanist 2021 v.12 pp. 123-131
ISSN:
2531-4033
Subject:
chromosome number,   etc   ; Allium; Armeria; Hieracium; botanists; chromosomes; flora; Italy;     Show all 8 Subjects
Abstract:
... AbstractIn this contribution, new chromosome data obtained on material collected in Italy are presented. It includes the first counts for Hieracium glanduliferum s.str. and H. tenuiflorum, counts for two Armeria species endemic to Italy, and for Onopordumillyricumsubsp.illyricum. We also present here the first chromosome count of Allium permixtum for Italy, where this species is known for few loc ...
DOI:
10.3897/italianbotanist.12.79031

18. Fertility investigation in F1 hybrid and karyotype analysis of backcross progeny from Misgurnus anguillicaudatus and Paramisgurnus dabryanus

Author:
Jiongying Yu; Meng Li; Weimin Wang
Source:
Aquaculture 2022 v.547 pp. 737509
ISSN:
0044-8486
Subject:
chromosome number,   etc   ; Misgurnus anguillicaudatus; Paramisgurnus dabryanus; aquaculture; backcrossing; embryogenesis; females; freshwater fish; gonads; growth performance; hybrids; karyotyping; males; meiosis; progeny; selfing; East Asia;     Show all 17 Subjects
Abstract:
... Dojo loach (Misgurnus anguillicaudatus) (DD, 2n = 50) and large-scale loach (Paramisgurnus dabryanus) (PP, 2n = 48) are freshwater fish species widely distributed across East Asia. Hybrids of these two loach species have disrupted gonadal development, but few studies have reported the actual fertility and chromosome number in gametes of reciprocal hybrid loaches (DD × PP and PP × DD, assigned as D ...
DOI:
10.1016/j.aquaculture.2021.737509

19. A report of intraspecific polyploidy (4x, 6x) in Festuca gigantea (L.) Vill (Family: Poaceae) from Western Himalaya, India and comments on its cyto-geography

Author:
Vandna Kumari; Jaswant Singh; Vijay Kumar Singhal
Source:
Nucleus 2021 v.64 no.2 pp. 219-223
ISSN:
0029-568X
Subject:
chromosome number,   etc   ; Festuca gigantea; cytotypes; hexaploidy; pollen; Himalayan region; India;     Show all 7 Subjects
Abstract:
... Two cytotypes of ‘giant fescue’ sporting gametic chromosome number of n = 14 and n = 21 corresponding to 4x and 6x ploidy level (based on x = 7) were encountered in the various localities in India falling in the Western Himalayan region. The pollen mother cells of hexaploid cytotype also exhibited presence of B chromosomes (n = 21 + 0 − 2B). The intra-specific polyploidy had direct effect on both ...
DOI:
10.1007/s13237-020-00347-8

20. Macroevolutionary insights into sedges (Carex: Cyperaceae): The effects of rapid chromosome number evolution on lineage diversification

Author:
José I. Márquez‐Corro; Santiago Martín‐Bravo; Pedro Jiménez‐Mejías; Andrew L. Hipp; Daniel Spalink; Robert F. C. Naczi; Eric H. Roalson; Modesto Luceño; Marcial Escudero
Source:
Journal of systematics and evolution 2021 v.59 no.4 pp. 776-790
ISSN:
1674-4918
Subject:
chromosome number,   etc   ; Carex; chromosomes; ecology; genome; phylogeny; polyploidy; reproductive isolation;     Show all 8 Subjects
Abstract:
... Changes in holocentric chromosome number due to fission and fusion have direct and immediate effects on genome structure and recombination rates. These, in turn, may influence ecology and evolutionary trajectories profoundly. Sedges of the genus Carex (Cyperaceae) comprise ca. 2000 species with holocentric chromosomes. The genus exhibits a phenomenal range in the chromosome number (2n = 10 − 132) ...
DOI:
10.1111/jse.12730