Karasal Yaşamın Başlangıcında Briyofitler

Yaşamın nasıl başladığı insanoğlu tarafından antik çağlardan beri merak edilmiştir. Günümüzde bu konuda yaygın olarak kabul gören görüş yaşamın suda başladığı ve daha sonraki aşamalarda sudan karaya geçtiğidir. Bu süreçte bitkilerin karaya çıkışı ve karasal yaşama adaptasyonu önemli bir aşamayı oluşturmaktadır. Son 20 yıldır briyofitler ile trakeofitler arasındaki ilişkiyi ortaya koymak amacıyla birçok araştırma yapılmıştır. Yapılan bu araştırmaların neticesinde briyofitlerin evrimsel gelişim sürecinde trakeofitler ile kardeş gruplar olduğu sonucu ortaya çıkmıştır. Ayrıca, briyofitlerin en erken karasal yaşama adapte olan bitkiler olduğu tezi son yıllarda oldukça geniş bir çevrede kabul görmektedir. Evrimsel sürecin daha iyi anlaşılması ve günümüz bitkilerinin daha iyi tanınması amacıyla briyofitler üzerine çalışmaların detaylandırılarak arttırılması gerekmektedir.

Bryophyte in the Beginning of Terrestrial Life

The beginning of life has been wondered by human beings since ancient ages. The widely accepted opinion is that life began in water and after that landed. In this process, the landing of plants and adapting to terrestrial life of plants are important stages. The last 20 years it’s been done many researches to find out the relationship of bryophytes and tracheophytes. The results of these researches revealed that in evolutionary development process bryophytes and tracheophytes are sister groups. Thesis about earliest land plants are bryophytes is widely accepted recent years. To understand evolutionary process and plants of today’s better, researches about bryophytes must increase.

Keywords:

Bryophytes, Evolution, Terrestrial life,

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