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首页> 外文期刊>AIMS Genetics >Cdsup2+/sup+Crsup6+/supcauses toxic effects on chromosomal development of microspore in emCarthamus tinctorius/em
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Cdsup2+/sup+Crsup6+/supcauses toxic effects on chromosomal development of microspore in emCarthamus tinctorius/em

机译：Cd 2 + + Cr 6 + 对烟草（Carthamus tinctorius）的小孢子染色体发育产生毒性作用

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摘要

Intra-category hybrids of Carthamus tinctorius were analyzedfor the genetic toxicityin detail for effect of Cdsup2+/sup+Crsup6+/supon reproductive biology of Carthamus tinctorius .Five partially tolerant and five non-tolerant accessions of Carthamus tinctorius after screening were crossed to produce intra-category hybrid. These two heavy metals in combination influenced antagonistically first as well as second meiotic divisions inducing various kinds of anomalies and reduced the number of pollen grains per anther and significantly increased pollen sterility. A differential response for the amount of meiotic irregularity was recorded between different treated sets of hybrids in (Cd+Cr) treated sets. This could be due to differential response of the genotypes for the same concentration of (Cd+Cr). These two heavy metals in combination reduced the number of pollen grains per anther and significantly increased pollen sterility.
机译：分析了红花树内杂种的遗传毒性，详细研究了Cd 2 + + Cr 6 + 对红花树生殖生物学的影响。5个部分耐受和5个非耐受将筛选后的红花的耐性种质杂交以产生类别内杂种。这两种重金属的结合对第一和第二减数分裂分裂产生拮抗作用，诱导各种异常，并降低了花药的花粉粒数量，并显着提高了花粉的不育性。在（Cd + Cr）处理组的不同处理组的杂种之间记录了对减数分裂不规则量的差异响应。这可能是由于相同浓度的（Cd + Cr）基因型的差异性反应。这两种重金属的结合减少了花药的花粉粒数量，并显着提高了花粉的无菌性。

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