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amphidiploid
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amphidiploid
amphidiploid, a. and n. Biol. (ˌæmfɪˈdɪplɔɪd) [f. amphi- + diploid a.] Having a diploid set of chromosomes derived from each of its parents; double diploid; = allotetraploid a. Also as n., a hybrid of this kind. Hence ˌamphiˈdiploidy, the state of being amphidiploid.1930 Univ. Calif. Publ. Agric. Sc...
Oxford English Dictionary
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Brassica
This also represents the A genome component of the amphidiploid crop species B. napus and B. juncea.
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allopolyploidy
allopolyploidy Biol. (ˌæləʊˈpɒlɪplɔɪdɪ) [ad. G. allopolyploidie (Kihara and Ono 1927, in Zeitschr. für Zell. und Mikr. Anat. IV. 480), f. allo- 2 + polyploidy.] The state or occurrence of a polyploid having its sets of chromosomes derived from different species by means of hybridization.1928 Darling...
Oxford English Dictionary
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Rapeseed
B. napus is a digenomic amphidiploid that occurred due to the interspecific hybridization between B. oleracea and B. rapa. It is a self-compatible pollinating species like the other amphidiploid Brassica species.
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allotetraploid
allotetraploid, a. and n. Biol. (ˌæləʊˈtɛtrəplɔɪd) [f. allo- 2 + tetraploid.] = amphidiploid a. and n.1930 W. J. C. Lawrence in Genetica XII. 272 Hybrid tetraploid (allo-tetraploid). Ibid. 277 The most probable origin of an allotetraploid would seem to be hybridisation of two self-incompatible diplo...
Oxford English Dictionary
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Iris attica
Biochemistry
In 1956, Mitra conducted karyological studies on the samples of specimens that they collected, and stated that Iris pumila (2n = 32) was an amphidiploid
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parthenogenetic
parthenogenetic, a. (ˌpɑːθənəʊdʒɪˈnɛtɪk) [f. as prec. + -genetic.] 1. Biol. Pertaining to, of the nature of, or characterized by parthenogenesis; reproducing by parthenogenesis.1872 Darwin Orig. Spec. xiv. (ed. 6) 387 To accelerate parthenogenetic reproduction by gradual steps to an earlier and earl...
Oxford English Dictionary
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Drosera anglica
It is thought to originate from an amphidiploid hybrid of D. rotundifolia and D. linearis, meaning that a sterile hybrid between these two species doubled In 1955, Wood noted that D. anglica had a chromosome count of 2n=40, and hypothesized that it was of hybrid amphidiploid origin.
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Triangle of U
These are said to be allotetraploid (containing four genomes from two or more different species); more specifically, amphidiploid (with two genomes each
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Gopinath Panigrahi
tetraploid cytotype in Dryopteris villarsii complex has led to Dryopteris submontana (Fraser-Jenkins & Jermy) Fraser-Jenkins being described as a new amphidiploid
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Mentha canadensis
Mentha canadensis is an amphidiploid with 2n = 96 chromosomes.
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Nils Hylander
Hiit., a Northern Amphidiploid species. Bulletin du Jardin botanique de l'État à Bruxelles 27 (4 ): 591-604
Books
1941.
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Triticale
The triticale hybrids are all amphidiploid, which means the plant is diploid for two genomes derived from different species.
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Peanut
The initial hybrid would have been sterile, but spontaneous chromosome doubling restored its fertility, forming what is termed an amphidiploid or allotetraploid
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Hardy–Weinberg principle
polyploid case is the binomial expansion of:
where c is the ploidy, for example with tetraploid (c = 4):
Whether the organism is a 'true' tetraploid or an amphidiploid
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