NDLI: Ploidy-dependent survival of progeny arising from crosses between natural allotriploid Cobitis females and diploid C. taenia males (Pisces, Cobitidae)

Content Provider	Springer Nature Link
Author	Juch, Dorota Jabłońska, Olga Boroń, Alicja Kujawa, Roman Leska, Anna Grabowska, Anna Nynca, Anna Świgońska, Sylwia Król, Magdalena Spóz, Aneta Laskowska, Natalia Lao, Miłosz
Copyright Year	2014
Abstract	Crosses between 21 triploid hybrid Cobitis females and 19 C. taenia (2n = 48) males led to viable progeny; whereas no embryonic development was observed in crosses with tetraploid males (4n = 98). The ploidy status of 491 progenies randomly selected with flow cytometry (316) or chromosome analysis (175) revealed an average of 55.2 % triploids and 44.8 % tetraploids, but the ratio of 3n versus 4n fish did change during development. In the first 2 days after hatching, approximately 65.1 % of tetraploid larvae were observed. Their number decreased significantly to 30.8 and 6.2 % on average during 2–5 and 10–15 months of life, respectively. The karyotype of tetraploid progeny (4n = 98) included 3n = 74 chromosomes of the parental female and n = 24 of C. taenia male. The number of tetraploid progeny indicated indirectly that about 66 % of eggs from 3n females were fertilized with C. taenia. The rest of the eggs developed clonally via gynogenesis or hemiclonally via hybridogenesis into triploids of the same karyotype structure as parental females. We have documented for the first time that (at least under experimental conditions) tetraploids are commonly formed, but are less viable than triploids, and a ratio similar to what is found under natural conditions is finally attained. The current explanation concerning the ploidy and karyotype structure of the progeny confirms that the eggs of 3n Cobitis females are not only capable of maintaining all chromosomes but are also capable of incorporating the sperm genome, thus creating the potential to produce tetraploids.
Starting Page	351
Ending Page	359
Page Count	9
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	142
Issue Number	4
e-ISSN	15736857
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-07-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polyploid progeny Cobitis Gynogenesis Flow cytometry Karyotype Life Sciences Animal Genetics and Genomics Plant Genetics & Genomics Human Genetics Microbial Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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Erratum to: Ploidy-dependent survival of progeny arising from crosses between natural allotriploid Cobitis females and diploid C. taenia males (Pisces, Cobitidae)

Erratum to: Ploidy-dependent survival of progeny arising from crosses between natural allotriploid Cobitis females and diploid C. taenia males (Pisces, Cobitidae)

Gene mapping of 28S and 5S rDNA sites in the spined loach Cobitis taenia (Pisces, Cobitidae) from a diploid population and a diploid–tetraploid population

Replication Banding Patterns in the Spined Loach, Cobitis taenia L. (Pisces, Cobitidae)

Banded karyotype of spined loach Cobitis taenia and triploid Cobitis from Poland

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Disruption of normal meiosis in artificial inter-populational hybrid females of Misgurnus loach

The Genetic Structure of the Diploid–Polyploid Complex of the Spined Loach Cobitis taenia (Cypriniformes: Cobitidae) from the Middle Dnieper Basin

Rare diploid females coexist with rare males: a novel finding in triploid parthenogenetic populations in the psyllid Cacopsylla myrtilli (W. Wagner, 1947) (Hemiptera, Psylloidea) in northern Europe

Ploidy-dependent survival of progeny arising from crosses between natural allotriploid Cobitis females and diploid C. taenia males (Pisces, Cobitidae)

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