1) inbreeding depression
近交退化
1.
urophylla×grandis as materials,inbreeding depression and hybrid superiority in growth and wood traits are analyzed and discussed.
urophylla×grandis)种间杂交F1子代林为试材 ,讨论分析了桉树生长、材性指标的近交退化和杂种优势规律性 。
2) inbreeding depression
近交衰退
1.
The inbreeding depression value and the heterosisvalueIn general, |Id |= CHF1.
而近交衰退值杂种优势值：一般｜Ｉｄ｜＝ＣＨＦ１。
2.
To date,few studies had investigated the effects of inbreeding on growth and disease resistance,although inbreeding depression of such traits could play an important role in the evolution and ecology in Chinese shrimp,Fenneropenaeus chinensis.
58)g1 460尾中国对虾早期体重和感染白斑综合征病毒(WSSV)后存活时间的近交衰退系数。
3.
Small populations are more vulnerable for inbreeding depression, but their responses to the depression may not be observed due to the genetic load purged in studied species, benign environment investigated, differences in studied traits, different development stages of studied species, and different family lines, populations, and individuals used.
近交衰退产生的原因是近交增加了有害等位基因纯合几率,导致个体适应能力下降。
3) Self-hybriddegeneration
自交退化
4) Risk of inbreeding depression
近交衰退风险
补充资料：近交系
分子式：
CAS号：
性质：在动、植物中，通过亲代与子代重复杂交若干代而获得的遗传型相对纯一的纯系。近交系中，个体的性状会逐步趋于稳定一致，然而其生活力则降低。
CAS号：
性质：在动、植物中，通过亲代与子代重复杂交若干代而获得的遗传型相对纯一的纯系。近交系中，个体的性状会逐步趋于稳定一致，然而其生活力则降低。
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参考词条