请输入您要查询的英文单词:

 

单词 self-sterile
释义

self-sterile

/sɛlfˈstɛrʌɪl /
adjective Biology
Incapable of self-fertilization.Lower seed numbers in outcrossed fruits of self-fertile versus self-sterile plants probably reflect inbreeding depression due to mating of related individuals....
  • Many plants, apparently physically equipped for self-fertilization, were completely self-sterile.
  • By contrast, mutant hermaphrodites are self-sterile when unmated due to a failure in spermatid activation.

Derivatives

self-sterility

noun ...
  • This is because the genetic load required for complete self-sterility based on inbreeding depression is so unusually high that it is rarely, if ever, reached by any species.
  • In fact, the evolutionary pathway from obligate outcrossing based on self-sterility to predominant self-fertilization is among the most common and widespread trends in flowering plants.
  • This was accomplished by isolating single-conidium cultures from each progeny and testing for self-sterility and for mating type.
随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/3/22 18:03:30