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autotetraploid
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autotetraploid
autotetraploid Biol. (ˌɔːtəʊˈtɛtrəplɔɪd) [f. auto-1 + tetraploid.] A tetraploid having four sets of chromosomes produced by doubling the chromosome number of a single diploid species. Hence ˌautoˈtetraploidy, the condition or occurrence of such a tetraploid.1930 J. B. S. Haldane in Jrnl. Genetics XX...
Oxford English Dictionary
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Arabidopsis arenosa
It is found mostly in Central Europe in both a diploid and an autotetraploid form.
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tetrasomic
tetrasomic, a. (n.) Cytology. (tɛtrəˈsəʊmɪk) [f. as prec. + -ic.] Of or pertaining to a tetrasome. Also as n., a tetrasomic chromosome, cell, or individual.1922 A. F. Blakeslee in Amer. Naturalist LVI. 19, I have suggested..the terms disome [etc.]..with the adjectives disomic, trisomic, tetrasomic. ...
Oxford English Dictionary
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Galax
Galax urceolata can occur at multiple ploidy levels, an individual may be a diploid (2x), triploid (3x), or autotetraploid (4x) (autopolyploid). The cytotypes are neither morphologically nor geographically distinct, though there are slight climatic differences between the diploid and autotetraploid
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gigas
gigas, a. Bot. (ˈdʒaɪgəs) [a. Gr. γίγας: see giant.] Of or designating a polyploid form of a plant which is larger and more vigorous than the normal form.1915 Amer. Naturalist XLIX. 703 Both gigas forms are more persistently biennial in habit than their parents. 1939 Sinnott & Dunn Princ. Genetics (...
Oxford English Dictionary
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Phoebanthus
The relationship between the two species has never been closely analyzed, but it does not appear that P. grandiflorus is simply an autotetraploid of P.
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Pseudoroegneria spicata
Pseudoroegneria spicata is most commonly found as a diploid (2n = 14), although autotetraploid forms (4n = 28) have been found in eastern Washington and
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multivalent
multivalent, a. and n. Chem. (mʌltɪˈveɪlənt, mʌlˈtɪvələnt) [See multi- 1.] A. adj. 1. a. Having many degrees of valency.1874 J. P. Cooke New Chem. 278 Hydrates of multivalent radicals. b. Med. Of an antigen or antibody: having several sites at which it can become attached to an antibody or antigen, ...
Oxford English Dictionary
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Yield Characters and Protein Content in Autotetraploid Barley
Abstract: Comparison of 12 autotetraploid barley original varieties with their diploid parents in spikelets per ear, seed-set, 100-grain weight, grain weight per ear and protien content has been done.The results showed significant difference in characteristics mentioned above between tetraploids and diploids.In spikelets per ear, grains per era, seed-set and grain weight per ear, tetraploids ...
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Paeonia parnassica
Genetics
The Greek peony is an autotetraploid (4n=20) of which the diploid parent must have gone extinct.
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auto-
▪ I. auto-1 (ˈɔːtəʊ) repr. Gr. αὐτο- ‘self, one's own, by oneself, independent-ly,’ combining form of αὐτός self. Exceedingly common in Gr.; in L. only in a few words adopted from Gr. without analysis, as autochthones, autographus, automatus; more common in med.L.; and largely used in the mod. langs...
Oxford English Dictionary
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Asplenium petrarchae
has two subspecies: one diploid, which is actually the original fern, Asplenium petrarchae ssp. bivalens with a chromosome number of 2n = 72 and one autotetraploid
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(PDF) Observation on formation and development of ... - ResearchGate
PDF | On Jan 1, 2003, H.H. Zhang and others published Observation on formation and development of autotetraploid rice embryo sac using laser scanning confocal microscope | Find, read and cite all ...
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Zea perennis
Z. perennis is generally considered to be an autotetraploid from some ancestral population of Z. diploperennis.
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同源是什么意思_同源的翻译_音标_读音_用法_例句_爱词霸在线词典
一段染色体跟 非 同源染色体连在一起时就发生易位. 辞典例句 Autotetraploid An autopolyploid that has four times the haploid number of chromosomes.
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