scholarly journals Chromosome Numbers in Hieracium (Asteraceae) from Central and Southeastern Europe III

2017 ◽  
Vol 59 (2) ◽  
pp. 83-87
Author(s):  
Krystyna Musiał ◽  
Agnieszka Janas ◽  
Zbigniew Szeląg
Keyword(s):  
Chromosome Numbers ◽  
Southeastern Europe ◽  
First Time ◽  
Central And Southeastern Europe

AbstractChromosome numbers for 13 species of Hieracium L. s.str. from Bulgaria, Macedonia, Poland and Romania are given and their metaphase plates are illustrated. Chromosome numbers are published for the first time for H. djimilense s.lat. 2n=3x=27, H. fiekii R. Uechtr. 2n=3x=27, H. glabrescens (F. W. Schultz) Murr 2n=3x=27, H. juranomorphum Zahn 2n=3x=27, H. sparsiflorum subsp. sparsiceps Zahn 2n=3x=27 and H. sparsum subsp. naegelianiforme Behr & Zahn 2n=3x=27.

scholarly journals Chromosome Numbers in Hieracium (Asteraceae) from Central and Southeastern Europe II

2016 ◽  
Vol 58 (1) ◽  
pp. 119-123
Author(s):  
Krystyna Musiał ◽  
Agnieszka Janas ◽  
Zbigniew Szeląg
Keyword(s):  
Chromosome Numbers ◽  
Undescribed Species ◽  
Southeastern Europe ◽  
First Time ◽  
Central And Southeastern Europe

Abstract Chromosome numbers for 12 Hieracium s.str. species from Bulgaria, Macedonia, Montenegro, Poland, Romania and Serbia are given and their metaphase plates are illustrated. Chromosome numbers are published for the first time for H. albinum Fries 2n=4x=36, H. bukovicae Rohlena & Zahn; 2n=3x=27, H. retyezatense subsp. subatratiforme Neičeff & Zahn 2n=4x=36, H. velenovskyi Freyn 2n=3x=27, as well as two undescribed species belonging to the H. bohatschianum agg. 2n=4x=36 and H. nigrescens agg. 2n=4x=36 and a hybrid between H. naegelianum Pančić and H. bifidum s.lat. 2n=4x=36.

scholarly journals Chromosome Numbers in Hieracium (Asteraceae) from Central and Southeastern Europe I.

2015 ◽  
Vol 57 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Krystyna Musiał ◽  
Zbigniew Szeląg
Keyword(s):  
Bosnia And Herzegovina ◽  
Chromosome Numbers ◽  
Hybrid Origin ◽  
Undescribed Species ◽  
Southeastern Europe ◽  
First Time ◽  
Central And Southeastern Europe

Abstract Chromosome numbers for 16 Hieracium s.str. species from Bosnia and Herzegovina, Bulgaria, Macedonia, Montenegro, Poland, Romania and Serbia are given and their metaphase plates are illustrated. Chromosome numbers are published for the first time for H. filarszkyi Jáv. & Zahn 2n = 3x = 27, H. fritschianum Hayek & Zahn 2n = 3x = 27, H. fritzeiforme Zahn 2n = 3x = 27, H. hercegovinicum (Freyn & Vandas) Szeląg 2n=3x=27, H. nivimontis (Oborny & Zahn) Chrtek fil. 2n = 4x = 36, H. vagneri Pax 2n = 4x = 36, as well as three undescribed species of hybrid origin between H. olympicum Boiss. and H. sparsum Friv. 2n = 4x = 36, H. naegelianum Panc. and H. scardicum Bornm. & Zahn 2n = 3x = 27, and H. transylvanicum Heuff. and H. umbellatum L. 2n = 4x = 36.

scholarly journals Morphological, Anatomical and Cytological Studies of some Moss Species from Nigeria

2017 ◽  
Vol 9 (3) ◽  
pp. 404-413
Author(s):  
Abolade Oluremi BOLAJI ◽  
Julius Olaoye FALUYI
Keyword(s):  
Chromosome Numbers ◽  
Taxonomic Status ◽  
Knowledge Gaps ◽  
Moss Species ◽  
Anatomical Studies ◽  
First Time

Morphological, anatomical and chromosome studies of Hyophila crenulata C, Mull. Ex Dus, Thuidium gratum (P. Beauv) Jaeg., Barbula lambarenensis P. Vard.. Stereophyllum nitense Mitt. and Bryum coronatum Schwaegr from Nigeria, were carried out with a view to bridging some knowledge gaps that exist in their characterization and providing insightful information that could be useful in elucidating their taxonomic status. The morphological and anatomical studies revealed several gametophytic and sporophytic attributes which have not been previously reported and which were diagnostic for the moss species studied. The chromosome studies revealed the chromosome numbers to be Hyophila crenulata n = 4; Thuidium gratum n = 12 (10 + 2 m); Barbula lambarenensis n = 3; Stereophyllum nitense n = 9; and Bryum coronatum n = 10. The study concluded that the details of the morphological and anatomical descriptions as well as the chromosome numbers being reported for the first time in this study for the moss species studied could be very useful in their identification and taxonomic delimitation.

scholarly journals New Contribution to the Knowledge on the Chromosome Numbers of Turkish Cerambycidae (Coleoptera)

2021 ◽  
Vol 69 (2) ◽  
pp. 93-99
Author(s):  
Yavuz Koçak ◽  
Elmas Yağmur
Keyword(s):  
Chromosome Number ◽  
Sex Determination ◽  
Chromosome Numbers ◽  
Chromosome Count ◽  
Chromosomal Number ◽  
The Poor ◽  
Karyological Data ◽  
First Time

Information on the karyotypes of Turkish species of Cerambycidae is scanty. Our study contributes to the knowledge of the karyological data (chromosomal number and mechanism of sex determination) of five Turkish longicorn beetles; karyotypes of four taxa, one endemic, are described for the first time and for the remaining one, Purpuricenus budensis (Götz, 1783), the previously published chromosome count is confirmed. The chromosome number of Purpuricenus desfontainii inhumeralis Pic, 1891 and Purpuricenus budensis (Götz, 1783) (Cerambycinae, Trachyderini) was found to be 2n = 28 (13 + Xyp); Clytus rhamni Germar, 1817 and Plagionotus floralis (Pallas, 1773) (Cerambycinae, Clytini) 2n = 20 (9 + Xyp); and the endemic Dorcadion triste phrygicum Peks, 1993 (Lamiinae, Dorcadionini) 2n = 24 (11 + Xyp). In view of the paucity of data available until now, our study is important for both to improve the poor karyological knowledge of Turkish Cerambycidae and to provide an incentive for other researchers.

Chromosome studies on African plants. 9. Chromosome numbers in Ehrharta (Poaceae: Ehrharteae)

Bothalia ◽  
1989 ◽  
Vol 19 (1) ◽  
pp. 125-132 ◽  
Author(s):  
J. J. Spies ◽  
E. J. L. Saayman ◽  
S. P. Voges ◽  
G. Davidse
Keyword(s):  
Chromosome Number ◽  
Ploidy Level ◽  
Chromosome Numbers ◽  
Basic Chromosome Number ◽  
B Chromosomes ◽  
Basic Chromosome ◽  
Cytogenetic Studies ◽  
African Plants ◽  
First Time

Cytogenetic studies of 53 specimens of 14 species of the genus  Ehrharta Thunb. confirmed a basic chromosome number of 12 for the genus. Chromosome numbers for 13 species are described for the first time. The highest ploidy level yet observed in the genus (2n = lOx = 120) is reported for E. villosa var.  villosa. B chromosomes were observed in several specimens of four different species.

A contribution to the taxonomy of the genus Rhaponticoides (Asteraceae, Cardueae)

Phytotaxa ◽  
2019 ◽  
Vol 422 (1) ◽  
pp. 9-32 ◽  
Author(s):  
KAZEM NEGARESH
Keyword(s):  
Chromosome Numbers ◽  
Full Description ◽  
New Combinations ◽  
First Time

A taxonomic synopsis of the genus Rhaponticoides is presented. Rhaponticoides kultiassovii, R. lasiopoda, R. phyllopoda, R. androssovii, R. gontscharovii, R. alaica, R. modesti, R. ruthenica var. bipinnatifida, R. sect. Vicentinae, R. sect. Africanae, R. sect. Turkestanicae and R. sect. Aralocaspicae are proposed as new combinations. Full description for R. sect. Vicentinae, R. sect. Africanae, R. sect. Turkestanicae and R. sect. Aralocaspicae and a key for all sections are presented for the first time here. My previous descriptions of R. sect. Iranicae and R. sect. Ruthenicae are revised. Two names, R. kultiassovii and R. lasiopoda, are typified. In addition, type details, full descriptions, morphological comparisons, distribution and habitat of transferred taxa are given. Finally, a new list of species of the genus Rhaponticoides with their heterotypic synonyms, geographical distributions and chromosome numbers is provided.

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