Karyotype Evolution in n=7 Species from Different Crucifer Tribes

MANDÁKOVÁ, Terezie and Martin LYSÁK. Karyotype Evolution in n=7 Species from Different Crucifer Tribes. In Brassica2008. 2008.

Basic information

• Original name: Karyotype Evolution in n=7 Species from Different Crucifer Tribes
• Name in Czech: Evoluce karyotypu u brukvovitých druhů se sedmi páry chromosomů (n=7)
• Authors: MANDÁKOVÁ, Terezie (203 Czech Republic) and Martin LYSÁK (203 Czech Republic, guarantor).
• Edition: Brassica2008, 2008.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: Genetics and molecular biology
• Country of publisher: Norway
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/08:00027367
• Organization unit: Faculty of Science
• Keywords in English: Brassicaceae; chromosome evolution; comparative chromosome painting; cytogenetics
• Tags: Brassicaceae, chromosome evolution, comparative chromosome painting, cytogenetics
• Tags: International impact

Abstract

Molecular phylogenetic data along with comparative genetic and cytogenetic analyses suggest that karyotype evolution in the mustard family (Brassicaceae) is characterized by the constancy of basic chromosome number x=8 in more than a third of species with reductions toward lower chromosome number in several lineages (n=8 to n=7/6/5/4). We used the Ancestral Crucifer Karyotype (ACK; n=8) consisting of eight ancestral chromosomes and 24 conserved chromosomal blocks (Schranz et al. 2006), and the comparative genetic map of Boechera stricta (n=7; Schranz et al. 2007) as a basis for the reconstruction of karyotype evolution in several n=7 species from different crucifer lineages (B. stricta: Boechereae; Myagrum perfoliatum and Glastaria glastifolia: Isatideae; Noccaea caerulescens: Noccaeeae; Thellungiella halophila: Eutremeae; Conringia orientalis: Conringieae; Calepina irregularis and Goldbachia laevigata: Calepineae; Ochthodium aegyptiacum: Sisymbrieae).

Abstract (in Czech)

Pomocí metody KCP byl studován evoluční vztah domnělého Ancestrálního Karyotypu (AK; n=8) čeledi Brassicaceae a druhů Glastaria glastifolia, Myagrum perfoliatum (tribus Isatideae), Noccea caerulescens (Nocceae), Ochthodium aegyptiacum (Sisymbrieae), Thellungiella halophila (Eutremeae). Vedle těchto taxonů byly také analyzovány druhy náležející fylogeneticky blízkým skupinám (Conringieae: Conringia orientalis; Calepineae: Goldbachia laevigata). Pomocí KCP byla u všech studovaných druhů rekonstruována evoluce karyotypu ve smyslu předpokládané redukce počtu chromosomů z n=8 na n=7.

Links

• MSM0021622415, plan (intention): Name: Molekulární podstata buněčných a tkáňových regulací

Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations