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首页> 美国卫生研究院文献>AIMS Genetics >Cd2+ + Cr6+ causes toxic effects on chromosomal development of microspore in Carthamus tinctorius
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Cd2+ + Cr6+ causes toxic effects on chromosomal development of microspore in Carthamus tinctorius

机译：Cd2 + + Cr6 +对红花小孢子的染色体发育有毒作用

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摘要

Intra-category hybrids of Carthamus tinctorius were analyzed for the genetic toxicity in detail for effect of Cd2+ + Cr6+ on 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：详细分析了红花类内杂种的遗传毒性，研究了Cd 2 + + Cr 6 + 对红花生殖生物学的影响。将筛选后的五个红花部分耐受性和五个不耐受性的杂交种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）处理组的不同处理的杂种组之间记录了对减数分裂不规则量的差异响应。这可能是由于在相同浓度的（Cd + Cr）下基因型的差异反应。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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