Karyotypic stability of Fragaria (strawberry) species revealed by cross-species chromosome painting
Karyotypic stability of Fragaria (strawberry) species revealed by cross-species chromosome painting
复制标题
通过跨物种染色体涂色揭示草莓物种的核型稳定性
DOI:
10.1007/s10577-021-09666-1
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发表时间:
2021-06
影响因子:
2.6
通讯作者:
Yonghua Han
中科院分区:
文献类型:
--
作者:
Manman Qu;Luyue Zhang;Kunpeng Li;Jianying Sun;Zongyun Li;Yonghua Han
Chromosome karyotyping analysis is particularly useful in determining species relationships and the origin of polyploid species. Identification of individual chromosomes is the foundation for karyotype development. For Fragaria (strawberry) species, definitive identification of the individual chromosomes is extremely difficult because of their small size and similar shape. Here, we identified all chromosomes for 11 representative Fragaria species with different ploidy using a set of oligonucleotide-based probes developed in Fragaria vesca. Comprehensive molecular cytogenetic karyotypes were established based on the individually identified chromosomes. In addition, we used oligo probes to assign the 5S and 45S rDNA loci to specific chromosomes in 16 Fragaria species. We found that these Fragaria species maintained a remarkably conserved karyotype. No inter-chromosomal structural rearrangements at the cytological level were observed in any of the chromosomes among these species. Despite karyotypic stability and similarity, variations in the signal intensity of oligo probes were observed among the homologous chromosomes in several polyploid species. Moreover, most Fragaria species also showed differences in the distribution patterns of 45S and 5S rDNA. These data provide new insights into the origins of several polyploid Fragaria species.
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影响因子:
1.9
作者:
L. Jiajun;L. Yuhua;Du Guodong;D. Hanping;D. Mingqin
通讯作者:
L. Jiajun;L. Yuhua;Du Guodong;D. Hanping;D. Mingqin
影响因子:
2.8
作者:
Fukushima, Kenji;Imamura, Kaori;Nagano, Katsuya;Hoshi, Yoshikazu
通讯作者:
Hoshi, Yoshikazu
DOI:
10.3372/wi.36.36216
发表时间:
2006-10
期刊:
--
影响因子:
--
作者:
W. B. Dickoré;M. Kriechbaum
通讯作者:
W. B. Dickoré;M. Kriechbaum
DOI:
--
发表时间:
1971
期刊:
--
影响因子:
--
作者:
G. Stebbins
通讯作者:
G. Stebbins
DOI:
10.17660/actahortic.2009.842.1
发表时间:
2009-08
期刊:
--
影响因子:
--
作者:
G. Staudt
通讯作者:
G. Staudt